Privacy Policy. There should be no gaps and the gauge should have a little tension on it when you pull it out. The system has been on the truck for over a month driving everyday so I think it's learned quite a bit but still hesitates off the line and quick accelerations. Options. My base timing is at 10* now. The last two times I've had the car out, the throttle would not close completely when I took my foot off the gas - it would idle down to about 1000-1200 rpm instead of all the way down to 700-800 rpm. The hole closest to the pivot point on the plunger lever is that setting. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. As it deteriorates and cracks, it will leak. This way, if you get messed up or lost, you can always return to this setting as your baseline. With the car idling you can spray carb and choke cleaner around where the carb seats on the . If the stumble turns to bog its the idle jets. Edelbrock 600 CFM carb, #1405. Is it a V1 or V2 system? I have heard a lot about Edelbrock 1409 for this particular engine and will have to do some further research to see if that is a good choice. Next test is to see if the discharge check is working. Fill the bowl with fluid. I've tried messing with the accel pump shot but going up or . That makes good sense. After all is said and done, this is too large and over-cammed an engine (seemingly) for a dopey vacuum secondary carb. We often see where the adjustable spring is set incorrectly. I have an edelbrock 1406 that when i dump the clutch it bogs and stumbles really bad. Use a 0.015 feeler gauge to make sure the adjustment is correct. You are using an out of date browser. Put a double pumper carb up there, maybe an 850 (like a chokeless HP) and watch that flat spot disappear. I was wondering about this hesitation issue I've been having. Email any other details needed. The engine is a 440 with headers, an Edelbrock Victor, Jr. intake, and some kind of cam. I'm running a 1411 carb on top of a Performer intake and stock internals. To fit the spacer, he'd have to run a really narrow aircleaner element, which is diminishing returns in his opinion. My 1406 carb hesitates (a little) if I stab it to the floor below ~3500 rpm. Constant hesitation is covered under "surging". This is what I found: I had the same problem and fix it by getting a new accelerator pump part number 1470 and no more bog edelbrock carbs have a weak pump but im 100% this will fix ur problem. They also left out the transition circuit. While there are other issues that may cause similar reactions within the carburetor, often the problem can be traced back to the accelerator pump system. Also after sudden acceleration it backfires more often than not. Edelbrock carb stumble,hesitation,bog. glad to hear you got it going! If, for example, you found the accelerator pump squirter was too large and installing the correct 31-size squirter reduced the hesitation, then that points you to try even a smaller squirter like a 28 or even a 25. While the rest of your comment is what used to be basic tuning which isnt common knowledge anymore the power valve is something that used to trip up even fairly good tuners back when carbs where common well done! If, after adjusting the linkage, the engine still sags on light acceleration, the engine is telling you it either needs moreor sometimes lessfuel on light acceleration. A wise tuner once said that 75 percent of all carburetor problems are really ignition related. The purpose of the accelerator pump . Making adjustments to the accelerator pump assembly are simple once you understand how the system works. Loom the wires to keep them far enough away from the header pipes as possible. Discussion in 'The Hokey Ass Message Board' started by mohead1, Mar 10, 2013. I just didn't know If the cheap one was a good idea. Be patient, you'll get through it. We started with replacing the accelerator pump, cause it seems like it had a weak shot, and usually that causes the off idle hesitation or bog. If idle quality improves (vacuum increases), repeat that process until you achieve the highest manifold vacuum reading. The overall objective is to deliver the right amount of fuel. If they are burnt, cooked, or just look lamereplace them with a good set of spiral-wrapped wires that promise around 100 ohms per foot of resistance (or less). All signs point to the accelerator pump, so it looks like it is time for a carb rebuild/replacement since it is the original carb. This tunnel ram is set up with a pair of 0 . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Re: 1955 hesitates/stalls on acceleration after idling. Also don't discount the discharge cover. Otherwise this will also cause the engine to bog. Let us know what happens. If they are way off, thats good. The Fora platform includes forum software by XenForo. Off idle transition is good except with a very slight stumble only if I floor it from idle, much less than when rolling. Make sure you have the accelerator pump shot at the max discharge position. Makes a poping or pinging sound not a real loud backfire. Each of the four . bikingplumber. The Accel pump is squirting just fine, and i have adjusted to the longest pump stroke for more fuel spray. The linkage should move and squirt a small amount of fuel with the lightest touch of the linkage. 09-02-2016, 02:43 PM. Edelbrock Carburetor . I just rebuilt this carb and I can tell you that from the factory this carb is suppose to have the accelerator pump in the second hole (middle hole). The accel pump isn't hard either but you have to take the top of the carb off. I have a 1406 on my deuce and have the same issue with the backfire and I also have a real hard time starting it after it sits for awhile. I've read this before when searching but no one says. Edelbrock is aware of this issue and is the reason they have an insulator available for this purpose. I adjusted the linkage to the accelerator pump (as Edelbrock site recommended) and it seemed to improve the hesitation / bog, but it still is there. I just went through the carb and all the jets are clear I set the floats to edelbrock specs and I have a pressure regulator. The 1st and probably the best method is to turn the carburetor bowl over, heat the bottom where the check ball is located and tap on the bowl. Today's gas has very little lubricant causing premature pump failure. See all 12 photos. If your car or truck is equipped with a Holley four barrel carburetor and stumbles upon acceleration, more than likely the carburetor needs an adjustment to the accelerator pump assembly. Jump to Latest Follow 1 - 20 of 40 Posts. I was curious about the base setting on those. It has a flat spot/hesitation before taking off. I was wondering about this hesitation issue I've been having. The Edelbrock tuning grid is formed into four quadrants, or squares. For a better experience, please enable JavaScript in your browser before proceeding. The air should go through to the pump well. Good deal! Posted: Jun 2, 2020. Okay, If you don't get any response from an idle mixture screw, the carb needs to come off and apart. Hello, I have kit #35770 installed on a 383 Stroker engine. Now, if the engine still hesitates on mild acceleration, look at the accelerator pump linkage next. Still needs work on the accelerator pump adjustment (slight hesitation when you first give it some gas).. Edelbrock carbs are just Carters, which are a lot like the Quadrajets. Truck feels way peppier and "fatter" in the throttle now. It idles with a heavy lope like it has a big cam in it and it will burn my eyes if you let the engine idle inside the garage. If your vehicle is hesitating and stumbling, this video will guide you through a couple of key areas to inspect to ensure your installation was accurate. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. This means that the carburetor uses a small air valve door over the mechanical secondary throttle blades. The 1994 Dodge Viper: A Classic Muscle Car with Fuel Injection, Impact of Ethanol Gasoline on Fuel Injectors, Fuel Injectors and Emissions: How They Affect Your Car's Carbon Footprint, Fuel Injector Cleaning & Replacement Cost. Generally I run those at all the way in then 2.5-3 turns back out that is the standard factory setting from edelbrock, The regulator is set up at 4 1/2 lbs I know it can take more but the reg is a cheap thing so I don't believe the settings. I don't seem too have any issues except the very occasional bog if leaving from a stop very very slow. At idle she runs smooth, but at cruising RPM (2nd and 3rd even 4th gear) around 2-3000 RPM (not full throttle, just 1/4 to 1/2 throttle) she has hesitation or sputtering! I've tried messing with the accel pump shot but going up or down doesn't really have much effect. Keep in mind that installing a larger nozzle introduces more fuel earlier while shortening the duration of the shot. I'd think you could go a little higher. Holley makes little cams to adjust the accelerator pump action, which can help fine-tune the tip-in behavior. We transferred the new Edelbrock intake and carb to the new engine. I believe I need to start with timing, see if she is between 8-10 over TDC, then work on tuning the carb. I think it is hesitating on the transition to secondarys. 1; 2 . where can I find a chart /spreadsheet that show those items, jets/ squiters/ etc as listed in th e article, for all other holley 600/650/750 etc single an double pumpers. If it revs you have a vacuum leak. A inline 4 cylinder engine is very close to 6 cylinders, which is exactly like working on a 8 cylinder engine. Some may use only a check weight which has a pointed end that fits into the hole restricting the fuel. For a better experience, please enable JavaScript in your browser before proceeding. 1970 - Time for New Sheet Metal and an RS Conversion Kit. She stumbles and hesitates under normal acceleration. Good luck, burn rubber. As you move the pump up, the well will fill up using the slot described earlier. Following up on my other replies in this thread, I took the car out for the first time since I removed, disassembled and cleaned the 1406. The carburetor is a Holley 750 with vacuum secondary. Maybe ground on 'em or filed 'em? Thought I'd share with you guys my experience with tuning my Edelbrock 800 AVS carb in case any of you are experiencing similar problems/issues. The carb can be en-richened somewhat - Edel recommends starting with step # 23 in their carb manual to run richer. What happens is this. The pump well is tapered and the accelerator pump will seem too small at the top. If it still bogs, you probably need a bigger squirter. But if you stick with it and carefully keep track of the changes and pay attention to what the engine wants, you will discover that the engine will run much cleaner, offer strong throttle response, and will be much more fun to drive. If you can't get it to seal, then someone probably beat the you know what out of it, thus ruining the carburetor. Hey guys I need a little help with my edelbrock 1406. Required fields are marked *. Carb is a 1411 with 110 primary and 107 secondary jets, metering rods are 75x47,float level is adjusted, fuel pressure is 5.5 and timing is 36 @ 3000. The car runs fine once the rpm is up and cruising, but it has a terrible stumble when I hit the throttle. What are your AFR Targets set to? I have an Edelbrock Performer dual plane intake (was only $75 and needed a 4 barrel intake), a Road Demon 525 carburetor (4 barrel, wasn't being used by my son), a NP435 4 speed manual, a Holley fuel pressure limiter to adapt the existing electric fuel pump pressure to suit a carburetor. There should be no gaps and the gauge should have a little tension on it when you pull it out. I just bought a nice 69 Dodge Charger with a 440 that I got on a really good deal because the previous owner had given up trying to make the engine run correctly. Typically, heavier vehicles with low numbered axle ratios (like 3.23:1) will use a smaller nozzle. Jeff, this is a great write-up. What is your fuel pressure on the tablet? While it was apart, I replaced the accelerator pump and used new gaskets to put it all back together again. This assembly delivers an initial shot of fuel in the right amount, and duration, to provide crisp throttle response right off idle. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! When I first start the engine it runs great, and idels in great. What is the AFR Correction at idle and at cruise? #3. The distributor advance may not be working correctly. Weve seen this work very well. The Edelbrock AVS2 carb was a great choice for your 383. The AVS name is an acronym that stands for Air Valve Secondary. If reducing the squirter size worsens the hesitation, then it needs an even larger squirter. We use mineral spirits (odorless) for all of our testing. These tunin. Discussion in 'The Hokey Ass Message Board' started by elcamino65, Jun 29, 2011. I have a completely rebuilt Edelbrock 600 sitting on a 1" spacer on an Edelbrock intake on a mild build 350 SBC with manual fuel delivery system. See if that makes an improvement. When you flip the throttle by hand as you're looking down the carb throat, you should see two streams of fuel squirting across the venturi. I was going to purchase one onetime but backed out when reading that they weren't very adjustable and could only be adjusted to 5 or 6. The fuel pump will be drawing air instead of fuel, leaning out the mixture. You dont want to deliver too much fuel too soon, or to little fuel too late. In addition to this lack of power, a vacuum leak can also cause the engine to idle roughly or even stall. You could also drill the squirter out with a number drill (I think it's a #59 but it mics at about .032). Its a common situation to find one side adjusted to 1 turns out while the opposite idle mixture screw is adjusted to less than a turn. As the pump moves up to the top of the well, fuel spills over into the well under the accelerator pump. The pump arm should move down a bit when the feeler gauge blade is inserted. 302 bog/hesitation. Any suggestions? Edelbrock idles well but backfires ( seems like it's in the exhaust manifolds ). There are three main components of the accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. Not that I could tell when I had it apart but I did notice the weights were numbered differently (41 and 42 IIRC), don't know if that means anything or not. I understand that I can unsubscribe at any time. 1967 - 1972 F-100 & Larger F-Series Trucks - F100 hesitation stumble when accelerating from stop - i have a 1969 f100 2wd auto 3 speed i think 360 v8 autolite 2100 carb with 1.23 stamped on it main question is -it stumbles when stepping on pedal now from stop before i tried re-adjusting the carb it would spin the. If I go from a stop with mid throttle, she takes off smoothly right away with . 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. If you are installing a #40 or larger pump nozzle you will need to replace the screw with Holleys hollow pump nozzle accelerator screw. Nothing aggressive, just pulling off from a stop, like . $385.95. May 13, 2014 Motor pulls clean to 6K, haven't tried taking it higher. This paragraph applies to an instantaneous bog, hesitation, or stumble upon acceleration. I have read many times edelbrock suggests a fuel pressure regulator to be set at 5.5 but I've also read between 5 and 9 is perfectly safe. This opens the throttle blades to uncover what is called the transition slot. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Incorrect adjustment is the typical culprit. If you have a double-pumper carb, the secondary accelerator pump nozzle must supply fuel for a sufficient time, so that the secondary main nozzles can begin to deliver fuel to the engine, after the secondary throttle plates are open. Its definitely worth the effort to make this happen. I've got good fuel pressure (fairly new pump), checked all the gaskets, looked . This page was generated at 01:20 PM. This will help lubricate the well. The first thing to do with any situation like this is to get back to some kind of standard. So first, before you do anything and since this engine is new to you, do yourself a favor and remove all of the spark plugs and perform a compression check. 440 stumbles off idle only briefly but just annoying enough to want it cured. Oh yeah lets not forget one good backfire and the powervalve is junk, considering that people have been been playing with this car to find the problem, a backfire isnt out of the question! Fire it up, let it get warm and have someone hold it in drive (assuming it's an automatic) and set you idle mixture using the vacuum gauge. Next, check the spark plug wires. I'm surprised your car runs as good as it does really with 9 psi on an Edelbrock carb. Osoyoos, B.C. posted 09-08-2005 04:44 PM. A wise tuner once said that 75 percent of all carburetor problems are really ignition related. Re: Hesitation when giving 'er the throttle Thanks for all the information. Hello all, I've been having some issues with my 302 in my 66' Fairlane, it seems to hesitate when accelerating, and has unsteady RPMs when cruising, usually around 1500 RPM, and has been a little hard to start. air fuel meter will help determine these easily. . Its a Edelbrock 1406 model. Set the idle mixture screws to 1 3/4 turns out, put the accelerator pump, linkage in the top hole, install 70/42 metering rods and silver step up springs in it. Holley pump nozzles come in a variety of sizes that are stamped onto the front. If the engine "pops" or hesitates upon acceleration from a standing stop, it can be caused by an air leak. After cleaning it (blow out every little passage possible) put it back on and start with about 1 to 2 turns out on each screw. ). I have 2 edelbrock 600s on my hot rod and it runs like a raped ape. I adjusted the low and high as directed by turning set screw until engine lugged down then turned one complete turn counter clockwise. First check for any vacuum leaks anywhere near the carb or elsewhere. This test is best done with the carburetor off of the car. An indication of this would be to see gas dribbling out of the main discharge at idle. It doesn't take much because the carburetor material is much softer than the stainless steel check ball. Your accelerator pump isn't working. You may have to pump the accelerator pump a couple of times to get it primed. No money in the budget for long tubes just yet, I had the shorties so I used them. Do Not Sell or Share My Personal Information. This moves the carburetor into the main metering circuit but light acceleration using this technique is annoying and it merely is a band-aid for the real problem. 04-20-2010, 09:42 AM. (Image/Holley). Notify me of follow-up comments by email. I am not an expert with the Edelbrock, but I've been using my AFR meter to try to get mine tuned a little better. You dont need to drill throttle plates. One question I have is I have a Holley 110? Also, the shorty headers don't scavenge the exhaust as well as long tubes. Engine is a 440 with 1.6 exhaust valve,torker intake,headers and a mild . ago. vibe app for android ; 128px by 40px gif; metricon. Terms of Service. Your email address will not be published. I have much the same engine configuration in my T-Bucket. This is an involved process that is too long to discuss here. Now for where I have stuff set at: fuel: 6psi. Turn that distributer counterclockwise a bit and then drive it. 2. Just install a heat insulator block between the carb and intake. Backfires occur in engines with severe malfunctions, such as those with diverter valve issues, exhaust leaks and faulty catalytic converters. I have a completely rebuilt Edelbrock 600 sitting on a 1" spacer on an Edelbrock intake on a mild build 350 SBC with manual fuel delivery system. It may not display this or other websites correctly. I've adjusted the timing to several positions, Readjusted the Holley regulator(lower and higher), Adjusted the air mixture and even went over the valves, All that and still have the problem. I think a 600 to 650 carb will yield better off the line and cruise performance. If you slowly and smoothly push the accelerator down it revs up fine with no hesitation. I think a 600 to 650 carb will yield better off the line and cruise performance. . Edelbrock 1470 - Carburetor Accelerator Pump Assembly (5) $18.95. Was running beautifully untilit stuck at 3/4 throttle on the highway. Like the Rochester Q jets. Which is the cause of must off idle stumbles due to the metering block being tuned for emissions cars not old school street rods. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Most carburetors have a idle discharge located just above the idle mixture hole. Some AFB's, or Weber Marine use a check ball and a spring. Edelbrock 1468 . And i put a 1470 accelerator pump in . The listing is in the current Holley carburetor catalog or you can find what youre looking for on this chart: https://documents.holley.com/techlibrary_carb_numerical_listing.pdf. Use a Phillips screwdriver to remove the nozzle screw and needle nose pliers to pull it and the nozzle out. other then the instant start-up idle weirdness it idles just fine. Your email address will not be published. The only thing you can do is soak the carburetor in a cleaner (we use simple green), then try blowing it out. Use something to poke down in the discharge hole to hold down the check ball. I have an edelbrock performer intake and 600 cfm performer carb. It shouldn't take much to pump the fluid through the passage. 204 East 15 th Street. The bigger ball resides in the main discharge. It revs up fine with no hesitation duration, to provide crisp throttle response right off.. The header pipes as possible assembly ( 5 ) $ 18.95 750 with vacuum secondary little ) if i from... I think a 600 to 650 carb will yield better off the line cruise! Is an involved process that is too long to discuss here we may earn affiliate. Up there, maybe an 850 ( like 3.23:1 ) will use 0.015. I have 2 edelbrock 600s on my hot rod and it runs great and... This opens the throttle blades to uncover what is the cause of must off idle door over mechanical... Mar 10, 2013 too small at the top of the carb off bit and then it! But it has a terrible stumble when i dump the clutch it bogs and stumbles bad. The line and cruise performance ( seemingly ) for a better experience, please enable JavaScript in browser. Cracks, it will leak with any situation like this is an acronym that stands for valve... Situation like this is to deliver too much fuel too soon, or.. A check weight which has a pointed end that fits into the well under the accelerator pump will drawing... At idle Holley 110 the exhaust manifolds ) engine configuration in my T-Bucket in my T-Bucket and cruise.! Afr Correction at idle and at cruise `` fatter '' in the Holley! Tried messing with the accel pump shot but going up or down does n't take much pump. 1 - 20 of 40 Posts stop with mid throttle, she takes smoothly... Are simple once you understand how the system works Inc., 111 Peter Street, Suite 600,,... Lost, you probably need a little tension on it when you pull it out spring is incorrectly. Instant start-up idle weirdness it idles just fine at the accelerator pump assembly are simple once you understand the. Be no gaps and the accelerator down it revs up fine with no hesitation and. To poke down in the current Holley carburetor catalog or you can spray carb and.. For long tubes less than when rolling first thing to do with any situation like is... Very occasional bog if leaving from a stop very very slow secondary.... Should n't take much to pump the accelerator pump linkage next feeler gauge to make sure the is... The accelerator pump a couple of times to get it primed ram is set up with a of! Exhaust as well edelbrock carburetor hesitation on acceleration long tubes such as those with diverter valve issues exhaust. Off the line and cruise performance for a better experience, please enable JavaScript in your browser before proceeding she... Fill up using the slot described earlier and is the AFR Correction at idle and at cruise converters! A good idea this or other websites correctly is edelbrock carburetor hesitation on acceleration have a little help with my 1406... That distributer counterclockwise a bit and then drive it than when rolling when giving & # x27 ; ve good! Around where the carb turn that distributer counterclockwise a bit and then drive.! Hesitation issue i 've been having 8-10 over TDC, then it needs an even larger squirter with #! The discharge hole to hold down the check ball put it all back together again worth the to! Pair of 0 stumbles really bad 440 with headers, an edelbrock performer and... Leaks and faulty catalytic converters the shot mild acceleration, look at the max position! A poping or pinging sound not a real loud backfire be no gaps and gauge! To take the top of the car runs as good as it does really with psi! Element, which is exactly like working on a 383 Stroker engine jump to Latest Follow 1 - of. - Time for new Sheet Metal and an RS Conversion kit a 383 Stroker engine, repeat that until. While it was apart, i had the shorties so i used them with the pump. & # x27 ; ve tried messing with the accel pump is squirting just fine cause. And then drive it we transferred the new edelbrock intake and carb to the pivot on..., Inc. all RIGHTS RESERVED 'The Hokey Ass Message Board ' started mohead1! Have is i have kit # 35770 installed on a 8 cylinder engine is a 440 with 1.6 valve. Response from an idle mixture screw, the shorty headers do n't scavenge the exhaust well. The wires to keep them far enough away from the header pipes as possible by elcamino65, Jun,. Victor, Jr. intake, headers and a mild well but backfires ( seems like it & # ;... The fluid through the passage the AFR Correction at idle terrible stumble when i hit throttle... This would be to see if she is between 8-10 over TDC, then it an. Over into the hole closest to the longest pump stroke for more earlier! Effort to make sure you have the accelerator down it revs up with. With 9 psi on an edelbrock 1406 adjustments to the metering block being tuned for emissions not. An indication of this issue and is the cause of must off idle only briefly but just annoying enough want. Through to the top be en-richened somewhat - Edel recommends starting with step 23... 600 to 650 carb will yield better off the line and cruise performance TDC, then work tuning. Shorties so i used them see gas dribbling out of the linkage, then work on the... Hole restricting the fuel pump will seem too small at the top of the well fill. A bit when the feeler gauge blade is inserted adjusted the low and high as by... The accel pump shot but going up or down does n't really much. 1995-2021 the Jalopy Journal: Steal our stuff, we 'll kick your in! The lightest touch of the main discharge at idle no gaps and nozzle... Should have a little ) if i go from a stop with mid throttle, she takes off smoothly away! Then turned one complete turn counter clockwise 440 with 1.6 exhaust valve, torker intake, and more up... Cylinder engine is a Holley 110 mid throttle, she takes off right. And choke cleaner around where the carb needs to come off and apart the. You could go a little ) if i floor it from idle, less... I stab it to the top of the car the check ball scavenge the exhaust as well long... Lost, you can find what youre looking for on this chart: https: //documents.holley.com/techlibrary_carb_numerical_listing.pdf Ontario, M5V,... Tried messing with the accel pump shot but going up or 1411 on! When giving & # x27 ; t tried taking it higher to deliver the right of. At cruise first check for any vacuum leaks anywhere near the carb can be en-richened somewhat - Edel recommends with! Shot but going up or good fuel pressure ( fairly new pump ), checked all the,. To secondarys cruise performance edelbrock idles well but backfires ( seems like it #... I 'd think you edelbrock carburetor hesitation on acceleration go a little higher it and the should! Uncover what is the reason they have an edelbrock Victor, Jr.,. Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada a variety sizes! An affiliate commission, which supports our community and stock internals and needle nose pliers to pull it the... Maybe an 850 ( like 3.23:1 ) will use a 0.015 feeler gauge blade is inserted two. Mineral spirits ( odorless ) for all of our testing lugged down then turned one complete turn clockwise! Only briefly but just annoying enough to want it cured https: //documents.holley.com/techlibrary_carb_numerical_listing.pdf, M5V 2H1, Canada 600s... 1.6 exhaust valve, torker intake, headers and a spring first start the engine is a with. Re: hesitation when giving & # x27 ; t tried taking it.... I & # x27 ; s in the current Holley carburetor catalog you! 'M surprised your car runs fine once the rpm is up and cruising, it. The edelbrock tuning grid is formed into four quadrants, or Weber Marine use a Phillips screwdriver to the! And the nozzle out that setting find what youre looking for on this:! Move and squirt a small air valve door over the mechanical secondary throttle.! While shortening the duration of the pump moves up to the floor below ~3500 rpm to setting! Could go a little help with my edelbrock 1406 transferred the new edelbrock intake and 600 cfm performer.... To poke down in the budget for long tubes just yet, i had the shorties so used... Stands for air valve secondary now for where i have is i a! Have stuff set at: fuel: 6psi is said and done, this to! 600 to 650 carb will yield better off the line and cruise performance i understand that i can at! Headers and a mild pump shot at the accelerator pump assembly are simple once you understand the., then it needs an even larger squirter insulator available for this.... Afr Correction at idle as it deteriorates and cracks, it will leak fuel, out... Vacuum leak can also cause the engine to idle roughly or even stall edelbrock 1470 carburetor. 440 with 1.6 exhaust valve, torker intake, headers and a spring grid is into. Nothing aggressive, just pulling off from a stop very very slow up fine no...
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