what cfm carb. should i use? i have a completely rebuilt 71 chevelle 402 with all edelbrock rpm stuff including aluminium heads & crane roller rockers & a big cam.i use it as a daily driver but take it to 5500 and above once in awhile. i have a k&n air filter on it. unfortunately this is the most recent pic i have of the engine, long before it was even started, broken in, and driven about 350 miles.
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