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cebra · 06-07-2018, 03:01 PM

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.

06-07-2018, 03:01 PM	#4
cebra Registered User Join Date: Jan 2018 Location: Durham, North Carolina Posts: 782	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.