212 predator wont rev

#1
I have a new gen 3 212 predator with the gov removed arc rod wisco piston 252 nrracing cam ported head 26 pound valve springs billit flywheel keyed to 32 degrees of timing bored carb and header. I have a 30 series tq with a racing belt.
this bike will throw you off of it if your not carefull . frame was stretched 5.5 inches and you can sit on the front of the frame and it will still wheelie. has 12 tooth front gear with stock 70 on the back. this bike will haul it for about twenty feet and then flatten out and will not rev any higher. whats weird is it did the same thing before I built the motor. I ran it with no gove stock and it flattened out at the the same rpm. does the gen three coil have a limiter in it? it looks like it has the ut1 coil.
 
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