I have no real idea if those numbers are right or not, but it seems that the peak RPM numbers are a little high.
Your clutch should be set to stall at peak torque. I don't care what RPM that is, what ever number you come up with, that's where it should be.
I often speak of the trick where you place a bathroom scale between the front of your kart and a strong wall. Start the engine, warm it up a little, and floor it. Try various clutch adjustments until you get the highest reading on the scale. That's where peak torque is.