Originally posted by Red65Novawagon
I have a formula that will get you real close; take the engine size and multiply it by the intended rpm with that cam I'll say 5500 max and then divide it by 3456 then you'll get the cfm in this case 636cfm but a 600cfm would probably give you a little more low end. LOL
According to the Holley graph the 600 is the closest carb for the aplication.Just like you said.