Originally Posted by solidus

At this point my sincere advice to you is to take your car to someone that knows what they're doing and have them go over what you've done and reset everything properly. Not a knock on you , but something I absolutely know from personal experience. I have blown a motor, had extensive fuel problems and had to be humbled.
A few posts back I gave you my set boost percentage of 24% to reach 9psi so that should have told you yours was way out of range. I also had a problem with fuel that probably had Seb wanting to slap me. Wasn't exactly my fault but in the end it was because I did my return system myself the first time and it was perfect. When I paid someone they screwed it up to the point it was so stupid it had me on the phone with Charles at 10pm. The problem was that they plumbed the whole system wrong. (Who caps a fitting on a damned bank 2 fuel rail!?!?!) The result of that was what you described, afrs going lean at WOT. In the end I had to actually explain to the people I paid to do the work how to do the work. Even then I have at least one more issue to have fixed after I'm done tuning.
Whatever happens I can guarantee you that taking it to a competent shop to clean things up is at a minimum 90% less expensive than having a glitter party in your oil pan. I've been to one and I promise it's a numbing experience about as exciting as a prostate exam.
Do what you want but now you can't ever say nobody told you.