Is it chipped? Otherwise ECU will cut fuel/ignition at about 10 PSI.

If chipped:
I had to fit the bleed valve "in line" after the amal valve to get proper boost. Seems like the bleed valve isn't able to "bleed enough air" on its own. Put it in the hose that goes from the amal valve to the wastegate actuator.

And don't forget that raising boost can kill your engine rather quickly!