Nice to be remembered
Used to go to 7500 rpm and over (shift light was set at 7500 rpm) during motorkhanas. This was with a 5k running a 169 grind Wade cam, stock valve train, twin aisan carbs, exhaust and a few other things ;) Also ran an electric fan and fuel pump to reduce drag on the motor.
can't remember the exact specs as it was over 10 years ago that the cam was fitted, but a quick search gives around 280 degrees duration and .405" lift.
Probably not the best vid to show the revs but