Right...
Me n BaV have changed over his MAF, MAP and N75 to mine and it was still running sloppy. But, I've found a pipe that was supposed to be on top of the wastegate / actuator! so we've put that on and it's a lot better! it doesn't sound like a boost leak no more but it's still overboosting a little...
So i'm assuming now it's got to be actuator??
Cheers