72psi is perfectly fine to drive to hoon around and Georgia.
I'm going to stay out of this thread for a variety of reasons, but just wanted to make one comment.
Keep in mind, with the way Cobb reads fuel pressure, 72psi is actually 57psi...on 25psi boost that gives him 32psi across the injectors. That's fine for now, but considering that's low boost and pump gas, he's way below the fuel supply he needs to make any power. We're not even in the ballpark of where we need to be to put E85 in it and turn it up.
Usually if fuel supply is this poor, there are issues with the basket/filter/sock etc and not just the pump itself, which is why i'm recommending he just take the plunge to the brushless kit (which replaces everything) and move on so we can get his car dialed in much more efficiently. The brushless setups are night/day better.