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geezer#99 · 07-07-2017, 01:11 PM

Power valve is ok.
Usually you want it to be about 1/2 what your in gear vac is.

What's your idle rpm?
Can you adjust either mixture screw in all the way without the engine quitting?

07-07-2017, 01:11 PM	#6
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,787	Re: 4.8 carb tuning help Power valve is ok. Usually you want it to be about 1/2 what your in gear vac is. What's your idle rpm? Can you adjust either mixture screw in all the way without the engine quitting?