My '99 FS600 SM certainly feels as strong as the blue graph. It has foam filters, BigGun exh. & FCR carb. I haven't had it apart to check out what piston/cam combo it has in it but was told by the dealer the previous owner put in a high-comp. piston. It supposedly put out 62 on the dyno, but with no dyno graph to prove it, who's to say? It pulls past 9k, but I don't quite feel comfortable up there. Any thoughts?
Dale, care to list the mods? I'm just curious.