Carburetor cfm calculator

Dartswinger70 said
OP, I guess you could just collect a few 4 barrel carbs and swap 'em around see which one is better :)

a 600,625,650,750 etc....( for those that dont wanna do math) LOL!

Math has nothing to do with it really, rpm x cid / 3456 = cfm x VE% = final cfm use that formula for what heads you need and or headers ??