69clark
Founding Member
You should be able to push 8-9psi relatively safely I would say. I am in the same boat, I only ran 6psi on the stock bottom end just to be safe and still made great power. Now with the built bottom end I may push it up more. So if your looking for a little more, just push up the boost to 8-9psi and if you tune is right your bottom end should hold up.