450-500HP 360?

A GOOD set of heads.
Worth mentioning again I suppose. I don't think I've repeated it for a few years now.......

Many years ago my Dad built engines for what is now the NASCAR Cup series. One day he poked me in the chest with his index finger and said, "Jimmy, there are three secrets to making horsepower. The first two secrets are cylinder heads. Third, and most important, IS THE CYLINDER HEADS!"