Just got back from XS Engineering, who dyno'd my vehicle.
Power shown is to the wheels.
Dyno runs 1 & 2 are at 12 lbs of boost (in theory, stock, though I haven't seen the stock curves). It seems, the stock fuel system has a bit of trouble at 12 lbs above 6k rpm or so, as it gets to an alarmingly lean 13:1 (especially bad with the horrible horrible 91 octane oxygenated pump gas we get here on the west coast). The operator let off because he didn't want anything to blow. You can see the power climbs steadily to about 6300 rpm and then they throttled back.
Dyno run 3 is on 6 lbs of boost. The air/fuel ratio stays in safe levels, and you can see how the power is a smoother curve, not dipping that much near redline.
The question now is how to address the fuel delivery in the higher RPM's without going with something as $$$ as Motec.
