cogman74

need some advice. was doing a 331 blown, changed my mind. now got a 393 from a buddy with afr 185, solid roller, forged internals, holley 750 HP, blah,blah. the headers are supercomp long tubes w/ 2" primaries and 3" pipes to the rear tires(with x pipe and mufflers). i have read that some people use a 15/8 and 21/2 combo on this. it will be a street car can i use the super comps for better flow and hp??