2001 2.5rs with swapped 2.2 (stroked) wrx motor

Alright guys and gals, need some help with this one!!!

2005 WRX 2.2 (stroked)
VF39
Cobb short ram
Invidia Divorced Catless
TGV delete
565 Injectors
STi Top mount
Grimmspeed 3 port EBC

Alright, he is going to email me his current tune. It was done by a local (protuner, lol) on cobb ap.

The issue that we are having, it will not boost to target, which is set at 17.0psi. There is no vacuum leaks and it has been smoke tested. We cannot figure out why it will not boost past 14.9psi. Now, here is the kicker, it was hitting only 13.0psi. The throttle body was not opening all the way (cable), so we "bent" the pedal upwards about 1.5", that took it to 14.9psi, but with further bending, there was no more change. The throttle pedal now sits 1/2" below the height of the brake pedal. Any thoughts on this would be greatly appreciated, and as i said, I will be able to send the current tune tomorrow around noon.
 
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