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I was wondering roughly how far out to turn the mixture screws to get about the right mixture on a 350, stock engine, no egr or other emissions equipment, stock exhaust and intake manifolds. My brother picked up his 77 with a brand new edelbrock on it and the guy said it needed to be adjusted. So, once we got a temp gauge on it and saw it was running at 130, I realized the mixture was low. Well, the mixture screws were all the way in! We backed them out a turn and now its running a lot better. About 170 deg and it has all 8 cylinders strong now. 6 and 7 were weak.
Well, your .02c holds no value! Because the more fuel in the chamber at idle the hotter the combustion. If the timing is too far retarded it will run hot. But, the less fuel in the chamber the less heat is produced. It was sitting at 135 with the idle screws all the way in. And at 170ish with the screws out a turn.
Well, that doesnt help me much. When I backed them out 1 turn my idle shot up and I had to back it back off. It didnt run poorly. So, does anyone remember how far out your screws are? I need a base line to go off of and then I will fine tune it according to the plugs.