Quote Originally Posted by LDave View Post
I'm hitting a few speed bumps with the tuning right now. once its all sorted out, the goal is 600 wheel. We'll see what happens.
My stock LS1 put down 350 RWHP so 10-13 psi should easily make 600. With heads and cam thrown in there 600 is doable on less than 10 psi. Just don't go over 700 at the crank or the aluminum shortblock will go bang.

What are your tuning problems, maybe I can help as I just went through all that?