it's running standard boost 0.55bar (8psi) but i changed my broken standard actuator to a -31 actuator. thing is in 3th 4th and 5th it overboosts. running 0.6 bar sometimes even goes to 0.7 bar in 5th gear. this guy said its because the amal valve can't work with the -31 if it aint chipped. on my standard actuator it didnt have this problem it ran lower boost 0.5 bar but peaked at 0.52 bar when it wasn't broken yet.

Anyone know what is really causing this?

Thanks