i have an 01 660 with proflow and foam filter, just ordered the parts to fix 2nd gear, putting in a 03 trans. ive done some research and it seems that the stock crank is pretty nice so im thinking of just putting a hotrod rod on it and thats about it. does this seem like a good idea? i may put an 11:1 stock bore piston and stage 2 hotcam would this be a nice setup? does boring to 686 make a notible differance? thanks robert im trying to get some ideas. i ride mostly trails and woods, LOTS of mud and water..