@ Thor maine, that may be true (I believe you are speaking of Ron Butler, as the builder of the kit cars), you could put a 427 Chev. in a Cobra and be back racing the next weekend. But you couldn't run in A Production, they (SCCA) would put you in A Sports Racing, which in the day was known as Group 7, CamAm's humble beginning, which during that time, had a LOT of Lola T-70, both open cockpit, and closed, McLaren Mk. 1A though and up to the M8E. Not counting the one off Genie's, or any other Group 7 cars that happen to showed up. The Cobra would be back of the pack car, at the very best. TommyRot P.S. The name Group 7, came about because it was more then likely the last race of the day, and kept the crowds there, as they were the fastest cars of the day (Lots of Thunder & Action
There is a well known fact that by the third or fourth lap, your Beer or Pop would be flat from the sound (True story, I was there)
