my question is to what cfm i should use i have currently ordered a universal carb enclosure supercharger system from vortech i need a holley 4150 series carb to go with it my buick has the factory 4bbl carb rochester quadrajet 830 cfm should i go with another 830 ... or should i go with a larger carb since buicks like gas or can i go with a slightly smaller carb f.y.i. eng block and heads are on their way to machine shop for boring.30 over and heads for milling porting and polishing. poston aluminum intake , headers, and cam are on the way too

What RPM do you expect to reach?

Are you supercharging this engine? If so, what PSI? If not, why are you buying the enclosure?

-Bob Cunningham
bobc@gnttype.org