Re: 350 Tuning Issue
I have the stock Holley 4150. I did notice if I unhook the throttle cable it stays at 1,700 rpm but if I pull back on it (not throttle it) the rpm will reduce. I wondered if the throttle plate was worn and letting vacuum in/not letting it fully out? Covering the top of the carb with my hands is something I have never heard of.
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