To gain perspective on statements Smokey Yunick is alleged to have made concerning the car, it is advisable to read his book. By his own admission, he was a "...lost ball in the tall weeds..." when it came to race car chassis set up. His thing was making power and he did it well, often to the chagrin of Chevrolet Engineering. His 1st 1966 Chevelle race car "...had power to spare but the chassis was so f**** up..." The second Chevelle was built by Chevrolet Engineering and was competitive until Curtis Turner demolished it. By '69 he was working for Ford, had worn out his welcome at Chevy and with nearly all sanctioning bodies. He was a GMC Truck dealership, had contacts and was provided a chassis destined for scrap, did not have a VIN tag. That Chevy Engineering expected him to do development work with it is preposterous. When Penske/Donohue encountered serious chassis and braking problems with their Camaro race cars, Chevrolet engineers solved them.
For the 1970 Trans-Am, season, Jim Hall/Chaparral Cars campaigned two 1970 Camaros. Hall had an Engineering degree and a reputation for solving high-speed handling and aerodynamic problems. Chevy had contracted with him to solve the serious handling problems of early Corvairs and was every bit an 'insider' at Chevy as Smokey had been. I doubt he received much help from Chevy. By the end of the '69 Trans Am season, Penske was so disgusted with Chevrolet he jumped to AMC for the '70 Season.
Yunick did build a '72 Camaro race car for A.J. Foyt. For some reason it was never raced and sold.
All this and much more was chronicled in a few books everyone should read:
Chevrolet = Racing? by Paul Van Valkenburgh
The Unfair Advantage by Mark Donohue
Best Damn Garage in Town by Smokey Yunick
