looking for some port work on my viper any suggestions

[mtnviper700]

have a 2004 viper looking for some porting work on cylinders,heads and pistons does anyone oh here know of a good place ? sled is only going to be raced 400-660ft

 

[captnviper]

http://www.totallyamaha.net/forums/members/800-mrviper700
Had mine done by Don and the support afterwards is really appreciated.

 

[mtnviper700]

Awesome thanks for the info