Found this on Facebook. For you who have Facebook check this video out and look at 8:42 minutes as it shows Ken's ZL1 on his hauler just behind John Hagen's Pro Stock Cuda in the pits. Ken tells me he thinks this was taken at Indy in 1970-72 and thought it was more likely 1971 and was on the hauler after he broke a valve spring in the finals of Super Stock. Neat video.
https://www.facebook.com/photo.php?v...=2&theater