Hey guys looking for head recommendations for my car ls2 vette CAI,Headers,FAST,and cam. Cam specs are 227-239 115+3 lift .613-.623 intake 277 exh is 289. Car is a nitrous car with a stock bottom end for right now. have the valve train to support current cam. looking to come as close to 500whp as possible prior to the juice. It's running a plate system currently.