I think your best bet would be to find someone in AHRMA (www.ahrma.org) vintage racing who has experience with bikes like yours. I bet if you joined it'd be easier to get access to other members. I bet there are lots of guys who'd be willing to trade their tuning secrets. While there's no question those guys are competitive out on the track, at the end of the day, the vintage race guys are just trying to have fun.

Richard Backus/Motorcycle Classics

When I joined AHRMA I can't remember if I requested a rule book or they just sent me one.I think if you go to their website you'll find the rules there for each class.It's worth checking because different clubs have different rules.I've been building a Rickman framed Kawasaki to race in our superbike class with the VRRA in Canada.I was hoping to race it at Roebling and Daytona next month,but AHRMAs rules specify OEM frames in the superbike class.Not such a big deal-I've been racing a '75 Z1 that's eligible,I was just hoping to be a little more competetive at those tracks.It's still going to be a blast.Can't wait.I can race the Rickman here in Canada.It'd be a shame to show up at the track and not be able to race because of an eligibility issue,so it's worth doing some research.Jerry

 I'm just trying to get a video from youtube, I'm trying to go racing to, since my favorite rider dumped me. I plan to race a Honda GB00, Triumph 500 and a 650 BSA.

Went to Barbor, fell 3 times, so I figured I need to bring a bike next time. That Honda will be the most $$$$, I want to just hop up the engine, strip off the turn signals, head light, break light and chane the suspension. No mongruel bikes(different engine).

The Triumph will be the easiest, lots to choose from, again, strip all that street crap off and refresh the engine.

The BSA, I'd like a hornet, change the gearing, and go.