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Old 08-09-2010, 09:40 PM
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bobcowan bobcowan is offline
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Location: Colorado Springs, CO
Cobra Make, Engine: Backdraft, supercharged Coyote
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Quote:
Originally Posted by Caprimaniac View Post
I have gotten further tuning the carbs: The middle carb need the idle screws 1 1/2 turn out, whereas the front and rear make it with only 1/2 turn out. Since all 3 were 11/2 turns out- soot and unburnt fuel may have made some of the cylinders come on and off? Could explain the popping exhaust as well. - Unburned fuel igniting in the exhaust.

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Now you're getting there. That balance is absolutly critical, both at idle and part throttle. This should be absolutly the first step. Don't mess with anything else until you get this exactly right.
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