tim,
buy a scooter and race prep it! it's an absolute blast. we race at gateway, blackhawk, crp, and norway, IL. you can't beat it. we have our own workshop in south stl where we make a lot of our own parts.
p.s. my lambretta made 12hp with shot rings on an old wiseco piston. topped out at 76mph. the guy doing my porting says it should now make 20hp and i'm raising the gearing so it should max at about 85mph with the new mods done. let me know if you want to get into this.