Mechanics

GMC TRUCK ENGINE PROBLEM

1980 GMC Truck • 50,000 miles

I have an edelbrock intake and carb on my 350 and my trucks running a bit rich and is spitting carbon from the exhaust, what is the exact readjustment ratio procedure for the carb to put it back to normal? I do not know what it is at right now. And what cleaners should I run through my truck to get the system cleaner?
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Jessesandberg
December 27, 2012.



There is no exact setting. All carbs are different. What I always would do is turn both fuel and air mixture screws in the entire way and then back out 1 1/2 turns. From there, I would adjust slowly until the engine runs its smoothest.

Ok thanks, is there anything else I should do to it?

Tiny
Jessesandberg
Dec 27, 2012.
As far as adjustment?