[Jack21]

Consider your 302 motor as training wheels while you learn how to drive your car. Save your money for a bigger engine when it's time to take the training wheels off. Any of the bigger Windsors will do nicely.

Do, however, swap out your factory mufflers for some decent glasspacks. I'm using 30" x 4" case x 2 1/2" core for a decent balance beteen flow, and loudness.