My current Camaro is a documented X66 COPO sold and raced out of Mac's Chevrolet, Crete Nebraska. This may be the only one identified so far. There are a few threads on this board showing history back to 1969 and a last december interview with Charlie Jacobs (who drove the car for Al MacNamara) at the NHRA Division 5 Legends dinner by a member
(fpcopo).
Some of the other threads;
My First Post
Thread on Charlie Jacobs
Clutch Driven Turbo 400
This car or I should say the drivers were hard on engine blocks (and trannys) because the original block, plus a ZL1 engine, and an L88 were all destroyed in explosions during the course of its racing life. According to fpcopo one of the blocks is in a racing museum in the midwest. The clutch driven hydro 400 and the paint scheme where borrowed from Dick Harrel, but never given back!
Al MacNamara, Charlie Jacobs, Jim Hayes, Delmar Star, fpcopo, and many more have contributed countless history, recounts and paper work showing the journey this car has made since 1969. Hopefully one day I will be attending a future SCR (SCR10 or 11 and racing it) and maybe get Al Mac and Chuck Jacobs to attend.