Hey Everyone,

Due to many unfortunate circumstances, bad luck, and learning experiences, I am building a Dart 363. Although this is a fresh start, I will be rolling over some parts from my 302. Specifically, my Trick Flow Twisted Wedge 170cc heads and my 600 cfm carb. For a 363, these are small and will pretty much choke the motor at high rpm. Eventually, I will upgrade. I am replacing the B303 cam I have with something more fitting (undecided).

Since I can go in any direction regarding the rotating assembly (my only constraint being pistons to fit the TW heads), what compression ratio should I shoot for? Naturally aspirated, pump gas. Since this is not the everyday car, I am ok with the motor being a little rowdy. I have read some articles that lead into thermal efficiency and the science behind compression ratio, but still not sure where to make it land.

Thoughts?