You should talk with Tom at Rocketresto.com. He just bought a 65 plymouth that was a famous old nascar/road racer. I cant remember who drove the car but he said it has quite a history. He showed me a few picts on the web of the car racing a road course. Tom knows a lot of stuff about the old road racers and there where abouts. I have seen the car he just bought and its amazing how crude it was. I wouldnt be caught dead racing that thing.. lol