My benchmark pre Megasquirt install:
10-11 PSI MBC'd pumped by a VF34 (see
here (turbo mount orientation/angle) for specific detail) into, and some out of, the ATX.
Stock ECU, piping, IC, etc everything stock bar VF, 2.5" exhaust and K&N Filter
AFR rich as - plenty more kW's to be gained by fueling correctly alone.