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

66fs said
Maybe export? No biggie. Just a laugh as far as I'm concerned.

I might as well sidetrack some more. LOL According to the dealer data books, the 68 Barracuda wasn't available with a 273 (2 or 4 barrel)
The Valiant was available with a 273-2 though.