Ron,
I may be able to help you. Fred Larsen and my gradfather Don Cummins were racing partners. The number on the was for the event #158. The car went into a spin and flipped over at approx 215mph. Here is a quote from Fred in an artical that was done a few years ago:
?The car was going backward, upside-down, and I slid on my hard head on the salt,? he remembers. Fred received 180 stitches on his head and face as a result. The roll bar was bent forward as the car slid backward, offering no protection. Larsen?s helmet was torn off when the mag broke and hit him on the back of his head during the slide.
I will try to attach some pictures. I could also email them to you if you want.