What’s the exact process to identify a real 66 Formula S Barracuda?

Some old pictures from 1976, restored in 1986, think the pictures of the car with the Goodyear Blue streak tires was taken in 1991, and those are original tires! Car now wears Coker repops and really makes the car pop...factory one as a spare yet.

73C5E9B0-F262-4A16-9363-ED16A7282D06.jpeg

F900F8A1-144C-4B49-96AC-56B613857F38.jpeg

BD68E4D6-B5E6-49B9-8358-2948495CB59F.jpeg

7DECAEE8-B0A9-44FC-92E8-BE02DF80BF88.jpeg

358BB613-9A53-403F-A6F0-A1BEC74B115B.jpeg

F582E045-6B79-4F6E-9891-595D3BC3CB22.jpeg

79A769B0-96D9-487C-AB7E-139CDC160172.jpeg

A70C0749-80F9-48FB-8EFE-B2A9CC2F630D.jpeg