Carb Question, 2 front set screws on a GM stock Carb. ? ? ?
01-19-2002, 11:13 PM
#1
Burning Brakes
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Carb Question, 2 front set screws on a GM stock Carb. ? ? ?
When adjusting the 2 front set screws , what are they adjusting. The idle or how rich or lean the fuel mix. is at all speeds.
01-19-2002, 11:30 PM
#3
Re: Carb Question, 2 front set screws on a GM stock Carb. ? ? ? (73-454)
You are adjusting the air/fuel mix at idle. Typically screw each in all the way, then back out 2-2.5 rounds. This will make it half-way close, but then use an O2 meter to really optimize it. The old way was to hook up a vacuum gauge on the manifold and maximize vacuum to achieve the best operating idle. Hope it helps.
Phlash 72 BB Roadster :seeya
Phlash 72 BB Roadster :seeya
01-19-2002, 11:36 PM
#4
Burning Brakes
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Re: Carb Question, 2 front set screws on a GM stock Carb. ? ? ? (Phlash)
Once again thank you for your response. I am almost becoming an expert on this 73.
