Kevin. I am curious where these documents were found on the 1968 L72 Camaro. Did they come with the car when the original owner purchased it? The other document on this L72 Camaro that was shown in the Chevy Action article appears to provide more information. The picture in the magazine was not very clear but it appeared to be a COPO form that deleted some RPO's in exchange for other parts. Can you post this COPO document? It has some writing on the bottom that I could not read.
About the L72 M22 1966 Corvette. Don Yenko orderer a 1966 Corvette for a customer/friend who wanted the best possible race car he can get from Chevy. I have read that it was ordered as a L-72, M-22, J-56 dual pin brakes, F-41 suspension, G-81 positraction, K-66 transistorized ignition, and had no radio or heater. It was said to have been one of two 1966 L72 Corvettes with a special engine suffix code. I don't know how accurate this info is but I wonder if this Corvette had one of the cast iron head L88 type motors in it. This is a picture of it after it was race preprepared by Yenko including cutting off the windshield and adding a 42 gal. gas tank.