Just wondering if anyone has had negative/possitive experiences with putting crankshop twins on an 800X Rev. I'm thinking about putting them on, but not sure how great the gain is. I was told possibly up to 20hp gained. I believe I would have to increase the weights in the front clutch and put a bigger spring in the rear. Also go up approximately 3 jet sizes. Any advise would be greatly appreciated.
cheers
cheers