im pretty sure u will need a blow thru carb,or u could keep the stock and put secondary injectors,i know for mass air sensors u have to by a certain kind for boost goin thru it so im sure carbs would have same,it would be fine on 6spi but id suggest atleast head studs and new gaskets,,i was gonna do twin but that got real expensive real quick and now half of it sits,expect atleast a 3 grand project