look at my sig that's my set up. Why do i have to run racefuel to crank it up to 17psi. My boy has det and runs 18psi , albeit on a smaller turbo (t28). he has 8:5 compression too. Is that why. But my pistons are forged . Is it my tuning? the emanage is tuned superconservative and doesn't allow the g to lean out much at all. What suggestions?