accelerator pedal position input, vehicle speed in km/h and engine speed in rpm.
these 3 items are used to measure transmission behaviour. at half throttle load the shifting occurs near 3000 rpm engine speed - you can also test the the transmission by going full power.
on full accelerator position (100% press) the engine should rev to redline before the transmission shifts into the next ratio - it should shift strong and powerful with no flaring.
The speeds would be pretty high.
get someone to adjust the pressure cable on the transmission, it changes the shift points quite a lot, too loose and it will shift too early, too tight and it will shift too late.