Backfire

[brak]

Originally Posted by combustion

well i cant tune the dam carb thats the thng. its an edelbrock carb. i have to swich out jets and things. but i do not think im overcarbureting it. its not that big of a carb

not sure why you wouldn't be able to tune an edelbrock carb...

in the front at the bottom of the carb are two screws, they adjust the idle mixture. doesn't get any easier than that.
also check the operation of your secondaries. if they are sticking open, that could cause your problem, as the mixture will be too rich for the decelerating engine.

[combustion]

Originally Posted by brak

not sure why you wouldn't be able to tune an edelbrock carb...

in the front at the bottom of the carb are two screws, they adjust the idle mixture. doesn't get any easier than that.
also check the operation of your secondaries. if they are sticking open, that could cause your problem, as the mixture will be too rich for the decelerating engine.

well i tried tem in 3 sttings. rich normal and lean. it still backfires. meaning its not the idle thats messed up. its something else.