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.

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I didn't notice your post before, does Coker still make repops of the blue streaks? Thanks.