Doesn't he have a driveshaft sensor on the car? I think the data log would tell all.
From what I was told there were a few cars that had higher MPH passes than they ever ran previous.
I heard there was another TSO car that ran a higher MPH.
Air good or not, if he had run a string of 173s all week the car would have had to pick up an additional 200 HP to make it to 180. Maybe he blocked the wastegate shut and bonzied that run, though the first half being what it was and being told he had to pedal it for traction (i was told) i am VERY skeptical