I just bought this 57 chev truck and don't know much about it yet. I have the top end torn down and would like some ideas. The heads are stock (3970126), he put a torker II intake on it with an Edelbrock 750 carb. The rocker arm assembly is stock from what I can see. I don't know anything about the cam/crank/pistons. Is there something I can do to improve performance with what I've got on the top? Do I have the right combination for the top end? It's not a racer, just a street machine.