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

I thought they had the slightest curve to them that was a little hard to notice. I have some nice originals I should look too, I could be wrong!
I think so, but expensive at $400 each....a guy we used to know had 10 originals and would not sell them...probably the only guy alive with that many originals. Dad borrowed a set for a few shows and took some pictures. The car had white wall bias ply Goodyear’s that he put on in 1987 and they just didn’t look right...a little skinnier too. These tires are the icing on the cake and drive really nice!

Dad has looked everywhere since he has had this car in 1976 for some and he has never found one come up for sale anywhere! He has only seen 1 or 3 used as a spare in the trunk. I have looked for these too for almost 30 years and bought the only 2 I have ever found! I found one here on FABO still mounted on the wide rim and I traded a set of rallye wheels for it and that’s the one he uses in his trunk. I found another one on eBay about 10 years ago or so and I got it so cheap, can’t believe nobody bid on it....that one will be a wall hanger I’m sure!
I looked at Coker and the only tires they show are a 3/8 inch wide blue side wall tires and no blue streaks and about $350.00 each. I would pay that if they were the blue streaks but a bit pricy for me with just a blue line. I'll spend it on a set of TTI's and a pair of slicks. As I tell my kids grandpa needs a new pair of slicks. lol.