My old S/P car left between 5600 and 5800 RPM at WOT off of the trans brake, 1.23 60 ft times, 5.50 at 125.+ MPH in the 1/8 mile boogie
I never tried anything lower shruggy
Still didn't win any races with that car whiney

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)