I think all three of those Corvettes in the photo, I believe there was another ? are Z06 cars which had Rochester fuel injection.
shelbydoug, I'm not sure if those steelies were made from unobtanium ? the finned aluminium wheels were porous and leaked. The steelies might have been wider, and most likely stronger, better for racing ? I'm no expert on these matters
The blue and white car was driven by Dave MacDonald.
Mike