Oh dude, I made a brand new Rincon 500 look sooooooooo stupid on the highway one day with the 'shee that he went and traded it a few weeks later.
I don't know the extent of what was done to that 'shee before I got it but it was damn fast. Almost too fast to be ridden for fun.
PO said it had been bored with flat tops, Weisco Hot Rods, some type of porting on the jug, race cut tranny and I can't for the life of me remember what kind of exhaust it had on it but it sounded uber kewl. It had +2 front arms, +4 rear axle and rode like a cadi in the woods but I just couldn't ride it fast enough to keep her cool. It would get hot and start pinging on me unless I could wind it out for a while. I knew better than to try to ride it where I was, but it was priceless watching those guys behind me looking for cover when I would start slinging rocks at them.