Scott's Nova site has some good info on the COPO Nova and on the SuperCar dealer Novas. He has two letters from Chevy about the 68 COPO car meeting the 50 car NHRA rule. That sure was nice of NHRA to make the 50 car rule. There may not have been any Hi Po COPOs, ZL1s, 1963 Z-11s or any of the other factory drag cars if it were not for this rule. This is one reason that it is difficult to believe Jim Mattison's theory that all the 68 Yenko Camaros were 427 COPOs. I would think that if 50 were built they would have made it legal to race in NHRA like the 68 COPO TH400 Nova. Scott also has an interesting story on the 1963 Fastback Nova built by Bill Thomas with Smokey Yunick motors.
http://www.geocities.com/MotorCity/S...ory.htm#Dealer