ECaulk:
I started the pull around 2000 RPM because it was 3rd gear. I have another datalog from the same day where I started in 2nd gear, but the front tires lit up as soon as I went WOT. I had to modulate the throttle like crazy fighting the car as it jumped into the right shoulder of the road.
Yes, the original question was why am I not seeing more than 22.4 psi of boost - it was established that 22.4 psi is the limit of the Manifold MAP sensor, but using Boost Lo Res, basically I wasn't seeing more than 25 psi of boost (I saw a few 26.6 psi spikes).
Before I had to cut the throttle, I was seeing 30.39 lb/min of airflow around 4700 RPM. In the other datalog where I used 2nd gear, I was seeing 31.76 lb/min at 5300 RPM and 33.58 lb/min at 6500 RPM but the duration wasn't too long (but not a spike) due to how fast the engine was revving up.