A 1967 Camaro RS/SS convertible Indy Pace Car was used to pace the sports car races held during the Sports Car Club of America (SCCA) June Sprints weekend at Road America in Elkhart Lake, Wisconsin on Saturday, June 17 and Sunday, June 18, 1967. This was just a few weeks after the 1967 Indy 500. Just like today, in 1967 there were multiple races held during the June Sprints weekend for multiple different classes of sports cars.
I found three fantastic color photographs of the Camaro pacing three different events at Flickr. They were posted by Tracer-X and his father took them back in 1967. (
https://www.flickr.com/photos/tracer-x/sets/72157625338357443)
The color photos show that the Camaro has the same blue interior, sun visors, dashboard, nose stripe and side stripe that the 1967 Indy Pace Car has. It also has the Rally Wheels, red line tires and the USA-1 front license plate. The door decal looks to be the same except that the "51st Annual Indianapolis 500 Mile Race May 30, 1967" has been taken off. Because this car has both sun visors I don't believe that it is the same car that was used to pace the Indy 500. The actual 1967 Indy 500 pace car had the passenger side sun visor replaced by a grab handle. That said, this car could've been used during the month of May in Indianapolisr. I'm not sure what the orange decal on the front fender says.
1st picture: This photo shows the Camaro just as it began to make its way into pit lane just prior to the F and G Production/H Sports Racer class getting the green flag from the starter stand at the top of the hill. According to the program this 15 lap event took place at 11:15 am on Sunday, June 18, 1967. (
https://www.flickr.com/photos/tracer-x/5259858794/in/album-72157625338357443/)
2nd picture: Cropped version of the same picture.