Hi all! I have a 1953 Pontiac 268ci flathead straight 8. I am looking for an Edmunds aluminum head, 2x2 or 3x2 intake, aluminum valve access covers. And ANY info on hopping up these motors. I'm thinking- cam grind. Probably can't get any more lift but I think I can get more duration. 40 over pistons. Hand made headers as well. Anyone done this? Thanks!