[95 imp]

First off, I know it isn't a cut in stone thing. Variables like cam/heads/exhaust etc. are going to affect the actual numbers.

That being said, what are the typical psi numbers for an otherwise stock motor to hit 750 on LT's?

Or, is a cam change mandatory to hit it?


Also, I asked somewhere else, what's the cc difference between LT1 and LT4 heads? Or, the new CR with the 4's heads on the 1's pistons?