Well the closer to zero deck height the better as far as pistons. The 906's are a good head just open chamber so you lose a little compression. Which will be ok if you can get a set of pistons that are close to zero deck at TDC.
I don't understand. If it was 9.2:1 prior to disassembly, why would it be less if I just reassembled the motor? I thought this motor had lower compression from the factory because of those pistons.
