Questions on changing boost pressure in open loop

[NickIsNotSus]

Hey, still pretty new to PMCtec question I have (because I'm not a tuner but learning the fundamentals) I followed through with the open loop boost I seem to be getting more boost (1bar) I'm just trying to set it to 13psi WG is 12psi. I changed the desired boost table to 12psi though the whole table for what I call a safety precaution so it could possibly safe a problem everything else as per openloop boost on the fg via tutorial. I am not sure what I have done wrong. 

Is there an Interference from thing i have changed? :

1, Turned off the second 02 sensor (no cat, I doubt it's a issue)

2, Ghost cams 

3, 980cc injectors ( I doubt that's is an issue I was sent a tec file for these) 

4, De-acceleration pops (timing 9° 2500RPM and 7° 3000RPM) 

5, 3.5" exaust to an aftermarket baffled rear mufflar (No cat no centre muffler.

6, 50mm turbosmart progate 12psi spring vent into atmosphere

7, running a gen 3 3584rs / t51r 

8, PSR stage 2 intercooler kit

Adjustable fuel pressure reg (set at OT at 4bar with vacum disconnected) 

I appreciate any feedback and/or reading marterial. I have searched over the last week, alot. there's not really anything that confirms what I should be addressing 

Cheers

[NickIsNotSus]

Ignore my spelling mistakes, trying to crack a ball joint on a customers car and missed and my typing thumb took the brunt of it on the disc

[Puffwagon]

Wastegate spring pressure is not exactly equivalent to boost pressure. You will frequently find that it is 1 or 2 psi under or over. Also you will find that boost creep comes into play as the revs rise, and in some cases there can be a 10psi difference at very high rpm, 5000rpm and above. There is always some amount of difference between the various engine setups that we run.