the one that blew away the 250r had macdizzys porting and the vitos power piston kit in it with the 14 tooth sprocket. that was his porting that did it though

 

no more mods for me i selling my blasetr because i just bought a realy clean 250r

 

I reccomend Hetrick Racing for porting. His two Blaster riders went first and second on the holeshot at the Red-Bud National this Weekend. The top dog for Blasters used to be Baldwin motorsports but I believe Rich Hetrick is the new king. The # is (814)676-0477 tell him Garrett sent you.