CT does good work, Porting is extensive, especially in the exhaust.  Ct" porting on the intake could be opened up more, but it is by no means a touch up. CT typically sets the zillas for more of an MX snappy midrange powerband with 39 MM carbs and a midrange pipe. Incredible trail, desert set up.  Thats what I ran on my zilla for decades and it was NICE.  I have gone to agressive dune port larger carb and Q2 pipe but I cant tell you how that runs because I ran out of time to assemble anything back on the frame---when I do have a free day i hop on the rappy and go play.  Trinity is known for more touch up-just make it shine--porting