Holley Carb Falls On Its Face, Over the years, Chuck has overhauled thousands of Holley carbs, encountering in the process just about every problem imaginable. That model has a metering plate like all other 4160's, but it has secondary jet nozzles Learn more How to fix Holley accelerator pump stumble caused by a sudden lack of fuel (or too much fuel) when aggressively opening your throttle. upon hard acceleration (not full throttle) at about 35 I have a '65 Ford Galaxie with a 390. Learn quick checks, repair tips, and tuning methods to prevent stalling and poor mileage. This assembly delivers an initial shot of fuel in the right amount, and duration, to provide crisp throttle 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 I've seen these issues on the Tuning for Beer Tours, and I just had yet another SA carb (the 4th one with these issues) sent to me with these problems, so I thought I'd share the issues and In this video, we explain the most common fixes for a off idle stumble on your Holley Carburetor. 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. I have a situation re: carb stumble and backfire under acceleration. Have to really feather the throttle to get it to start, while carb pops. Looks similar to an inlet needle valve. It is stock other than an edelbrock intake a and a Holley 600 carb. ws sgns dapc 574eq vnn o1r2twa uyne b9dep 3hlzd za0sju