So over the past year me and my brother have been turning a two man model 99 into a hotsaw to use at local competitions. Since it was the biggest cc saw I could get my hands one we went with it so far we have built a frame for it and mounted a bar. It cut slow so I sent the cylinder out to friend to be ported and it came back amazing.... we ran it again with stock head and a pipe off a 125cc dirtbike, it ran night and day different but still not good enough so I just finished making a high comp head for it . Has anybody else done this conversion ? Ill post pics once I dig them up on the computer