The schedule of events page also states that, "Official Pace Car at CDR, the Indy '500' Camaro, Courtesy Ruwart-McKinnon Chevrolet, Denver, Colorado." Surprisingly, there isn't much information available on this particular dealership either. I was able to find a photo of a 1968 Chevelle SS that was originally sold there and it still has the metal dealer sign attached to the trunk lid.
1) worthpoint
2) buffalocars.com