i am thinking of running a dynoport pipe and y pipe with the stock muffler, after looking at a couple dyno sheets, i think i need to clutch the sled to run about 7800 on top end, where the most hp is. my current clutching is stock, but i am going to switch secondarys, and put on a black/white spring and use 67.5gs lightning weights. i am about 190 lbs, and looking for top speed on a river.

If using the stock helix, use a red/dk. blue spring dalton 70 gram weights.