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Username Post: 1986 High Idle        (Topic#333554)
Forum Newbie
Posts: 9

Reg: 02-12-16
02-29-16 06:38 PM - Post#2612314    

Hi all, I am setting the fast and base idle with a quadrajet on an 86 chevy g10 4.3l v6 262 engine with approx 150k miles.

I have the base idle set to 800rpm and the high idle around 1000. Any lower on the base idleand the van has a rough idle.

The label calls for 500rpm base. Is this achievable? I was thinking about dialing the idle down to 500 and then adjusting the mixture idle screws. Thoughts?


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