Fuel flow and bsfc are always uncorrected........so, going by what's on that sheet, at say......6000rpm.......
You have 269.7 lbs/hr fuel flow........ bsfc of .549...... works out to 491.2 uncorrected hp.

Looks like the c/f was about 1.8% to me.

I would have definitely wanted to have the air turbine on for that test.
You can see the power takes a pretty big hit after it peaks, and the bsfc numbers kinda go in the tank.
Those are often signs that something is plugged up, or floating.

Seeing what the airflow through the motor is doing can help pin point it.

There isn't necessarily anything "wrong" going on..... The combination might simply be "done" at that rpm. If the airflow was still steadily going up with the rpm and the power dropping off that quickly, it would likely just be the head cross section is being used up, and/or there isn't enough cam duration to keep up.
Those issues don't really need addressing for a bracket build, you'd just like to know there wasn't a valvetrain issue if you intended to operate the motor in that rpm range.