I have discovered a person that does awesome porting on all two-strokes. I believe he is one of the best and he offers his services at an excellent price and he does the work quickly. The name is MEK Racing Engines. phone #(814)432-2916. Or you can email me at blaster668@hotmail.com and I'll pass the message on. I rode one of his ported Blasters and it was just as fast as my 240 from CT.