I was able to get my hands on the 1965 October issue of Car Life — I scanned all the photos at a higher resolution then what is online now — The magazine a great piece of history talking about Roy’s car as well as how to build a NASCAR spec 427 (BTW we plan to use this as a basis for our engine build).
If you look closely in the above photo, you’ll see the “NASCAR” painted on the rear-license plate – see below for how it looks today
Not much to say there the photos say it all But me personally I would leave the tag as is under a protective cover
I just returned from Hot August nights in Reno Nevada. At the swap meet I found the same idition of Car Life. What a find!