Just thought I would throw some of the stuff I have learned with the motor out there. The stock pipe is pretty good down low, however I bent both of the ones I have. I tried an O.S. 2060 and it really killed the power. I'm going to try a JP4 this weekend. I also run a Picco Turbo #6 plug, seems to run well for me. I'm a hammer on the throttle so I never get good fuel mileage, but I get about 8:30 out of the boost with the stock pipe combo. I would only get 7:30 out of a JX, so theres something to be said about that I suppose.
Chris