[wrenchnride247]

The 80 psi one should work fine. But IMO feel you should be asking Jake. There are alot of factors; year case, lifters, oil pump, O/P relief set-up, you know, the basics . Seriously though, I read a post on STF about this. Jake said " 40 psi is more than enough pressure at RPM for most combos. Above that you start to take HP away."