For the past  13 years or so I have been running a CT package. Mild port, CT pipe ( not the pipe that exits by your feet) a modified keihen PJ carb, and modified head, with pyramid reeds.  So much better than stock and bulletproof.  Its power is more MX like. Broad snappy torque power.  For the dunes I would like higher revs.  Pipe is strong bottom to mid but not a screamer. Had CT rebuild lower end with new seals bearings and some new gears last year but I have not had it back in bike since then.   Solid build but not a high HP set up either.

I am in the process now or restoring the entire quad and will be going with different set up . Have Q 2.0 pipe and will be going with modified mikuni, vforce reeds, and modified cool head. I may or may not change the porting.

Twin turbos, nitro methane, and a 1.21 gigawatt flux capacitor for hyper-drive. 
  (shameless plug--I will probably be selling the Pipe, reeds,Carb, and head en the near future)