306 feels slow.

[tysonbully2k12]

Injectors could make a difference to power, but not enough that i'd expect you to feel it. More likely the maf has gone, try running with it unplugged and see if theres a difference.

Boost gauge feed also feeds the wastegate actuator, so when the pipe came off you would have been running with the wastegate held shut and over-boosting.

I tried unplugging maf and there was no difference.
I drilled the inlet elbow for boost gauge pipe,