I just upgraded my GT with the Factory Team upgrade set and blue screw kit. I took it out there and the engine, when I accelerate goes to high revs but shows no major speed. High revs but goes pretty slow?? What could cause this, could it be the slipper??

Thanks

It probably is the slipper. Tighten it all of the way up and then back off some (to suit your taste).

i always thought that the nut should be flush with shaft end on a rc 10 gt?