Carburetor cfm calculator

rumblefish360 said

@273 To answer the only question you asked, it is because your choosing from stock or ported head and his is a stock head.

What the engine consumes in air is completely different to what carb will perform the best on it which is much larger than what a driver would like in most cases, person depending.

You are one wacky dude.

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Didn't realize I come off as wacky :) lol
I'm just trying say that formula seems to do more harm than good, by that formula a 650 would be over carbing a lot of 440's.

I think most here would agree that a stock to mild (350 ish hp) 318-360 would do good with a 600-650 carb especially where driveability is of most concern, no need to go smaller and or to use that formula. The idea of velocity is making people too cautious a lot of times about carb head valve etc... choices.