ive got a 306 eagle crank and h beam rods, speed pro flat tops, comp xe274hr cam pro comp heads 3037 190cc intake runners, 58cc chambers, pro products crosswind intake, holley 650cfm double pumper, crane 1.6in and 1.7ex full roller rockers, and im wanting to get the most hp possible from it, dont want to change the cam but i will if need be, just give me some good, proven inntakes heads, stuff that i screwed up on, forgot to add it has flowtech 1 5/8 long tube hedders. post up your ideas thanks. like i said im wanting it to run as good as it sounds lol