Speed Team Doo ran '70 and '71 Triumph 250s in 2008 and I shared one of the bikes with my wife. When it comes to racing, mine is better than ours, so I snatched an '82 Honda XR 500 off Craigs list. We knew it was not bred to the track (That didn't stop us from tweaking the Triumphs) but as old thumpers go, it's four valves and dual headers made it a fierce torque monster in it's day. Perhaps we could harness a little of that umph. To paraphrase Burt, "Anyone can buy a fast bike, the trick is to make a slow bike go fast."
This is the before picture.