Dana went in early and big time with their Chevy Hi Po dealership in 1967, had a great program with the 67 Camaro Trans Am car, a 67 Camaro 427 drag car, a 67 L88 Corvette road race car , and the 427 Camaro street cars
Jon posted some great info here
http://www.camaros.org/forum/index.php?topic=9092.60
the Competition Press & Autoweek article, dated 11-7-66 is interesting where they claim Dana Chevrolet is "first on the scene to offer a super Camaro"
goes on to say they offer street and drag racing 427 Camaros