[VRM]

The professors would be Charles Betz and Fred Peters - a couple of very well known collectors. The car is supposed to be 250 TR 0666. This is the same car that Jon Shirley just sold for $16M.
I've read before that the car had an engine swap in 1964 or so, but that it was a small block Ford. I have not read anywhere that Shelby put it in. That sort of seems unlikely as it was just a beat up old race car back then and they probably would not have invested the kind of money someone like Shelby probably would have charged.
You could probably find more info doing a search on:
250 TR 0666 ford engine

Hope that helps.
Steve