I've been to Calhoun just once; I think it was late 1966. It was billed as a big funny car type race, but I only remember three cars: Arnie Beswick, the Hutton team from Greenback, Tenn. in a Valiant, and Robert Nance, in a big injected AWB sedan. No camera with me; got one for Christmas that year (definitely remember that).
Nance blew his engine at the starting line, and I took this piece of it as a souvenir, and saved my ticket.