Flow bench (and dyno) numbers can be massaged to achieve a lot of results that have been pre-determined to be the desired outcome. It's sort of like "researchers" who depend on grant money to keep their jobs "finding" the results their donors want to see. One of the sneaky tricks dyno operators use is to run the RPM up to a specific number at no load, and then throw the brake on full instead of slowly advancing both RPM and load. The inertia of the rotating assembly will give a false torque reading, which can then be used to give an erroneously high HP number. There used to be a saying in the pits at the local round track- - - -"Horsepower is to brag about- - - -torque wins races!"
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!