69 barracuda 340-s VS Formula-S

Howdy, my 340-S is just a basic 340 fastback car with a four speed. It had/has a silver rear plate with no badge and has/had emblems on the front fenders that said 340-S. That is the only ID it had. Very very plain.
The only option it had was the engine. Someone added the fold down rear seat and I have added a few minor things.
Tom