Sorry to jack the thread... but that’s a Beauty in the back!That is period correct. I think you should het bonus judging points. There was no nice bead rolling tools back when I was kid. That is what people did, real common. Nobody spent a fortune shoretening there rearends to squeeze another inch of tire under there. Did not matter if it was a Hemi Cuda or a K-code Mustang out came th tin snips. If you wanted a 9-inch rearend you got it out of a wrecked 1965-1966 K Code Mustang or a 1957 Ford Ranch Wagon. Then If your G60-15 tires you bought from the Super Shops did fit you started carving away at the wheel wells. A lot of kids sidewalls had deep slices in them from the cut wheel wells rubbing. There weren't even sawzalls yet. I never did that but I had a lot of friends that did. No big deal you can add a piece back in there. That's just a little piece missing, usually 18 inches of it is missing.
That guy must have been one of the original Shelby employees. Look at the butcher job the factory did cutting out the louvers to put the windows in my '66 GT-350.