Holley carb dumping fuel at idle, These tips apply to all Holley carbs from 4150 to 4160 to 4500 series. It's a separate, smaller system within the carburetor that provides a tiny, steady stream of air and fuel to keep the engine turning over at a low speed. Sniper Stealth 4500 was designed to be installed at home in your garage with a few tools and the support of Holley's comprehensive installation manuals and online videos. Allows user to adjust or enable/disable the factory speed limiter. Holley Carburetor and Throttle Body Cleaner removes these deposits, restoring easy cold starts, smooth idle and improved throttle response. New carb 3310 Holley, fuel pressure set a hair above 6 psi verified with guage and vacuum guage, floats set at the middle of the sight glass. Over time, carburetor internals and choke valves can accumulate gum, varnish and dirt, reducing drivability and fuel efficiency. Hard to start, hot or cold runs great after starting, choke makes no difference. Some cleaning and adjustments usually solve the problem. It was running great then one day it began dumping fuel into both the primary and secondary side at idle so much so that you could see it dripping into each side after shutting it off.


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