I have a d16 with vitara pistons, eagle rods, 50 trim, and other things. Im pretty sure my ecu is chipped and socket already and tuned with crome for 8psi but i want to run more. How much would it be to tune it and how much psi would be pretty safe to run. Also have a meth kit left over from the srt thinkin about hookin it up.

Thanks, Greg