I have a raptor, and I want to get my engine built up by the best engine builder. I dont know who is the best for four stroke motors. I want to put a high compression piston, cam, port work. Any raptor owners who have had work done, any help would be apreciated......

 

trinity or four stroke tech i guess, I'd go with the 686 kit also.

 

trinity and quadtech are good....i am partial to curtis sparks....he is prolly the best....i am scheduled in march to have his 690 kit installed....kit comes complete with head modifications, high compression piston, fcr carbs, clutch kit, air box and pipe...prolly the fastest motor modification in the 690cc arena......