i am currently looking at building a 331 stroker for my mustang. I currently have a 93 cobra intake, f 303 cam, shorty headers, 4 10 gears, TKO 500 5 speed with king cobra clutch, 70 millimeter throttle body all calibtated to the stock 5.0 block with the cam in it (f 303), what am i going to need to make the block run right. I am also buying a set of tfs heads (possibly the r series head). Any advice on this would be greatly apperciated.