1968 Barracuda Notchback 340 car

I've never seen a title to an old car say formula s, GTS, R/T etc.

The fender tag nor the build sheet are legal items used for any registration purposes
Okay perfect thanks for that information the guy had me concerned and worried that I messed up the title or registration and that I couldn't prove or confirm that it was a formula S 340 car. Thanks for helping me out.