hey guys ive got a 331 sbf R-block 8.5:1 comp. with a F1R procharger. looking to put a nice set of heads on it and not positive which ones to go with. I am thinking of putting on a set of AFR205's. cam is a custom grind hydrolic roller i got from Jimmy LaRocca back in the day. this is a street strip car and im looking for a set of heads i can just bolt on and not worry about piston to valve clearance. if the guru's need anymore info please let me know. thanks for helping.