ok i put on some aftermarket headers and down pipe........... i know i know its an oz and it dosent matter what you put on it, it wont be fast. ok here it the problem, when i come to a stop the it starts to idle a really low rpms and some times dies i have checked all the bolts and tried spraing carb cleaner around where every thing meets to see if it has leaks cant find a thing. it also makes a sucking sound when i shut it off. any thing you guys have to say would help thnks