That is the Arlen Vanke built 1972/73 Challenger that Gene Dunlap, Arlen V. and other Rod Shop driver's drove - it was run once as a C/MP at the Gator Nats and then became a B/MP car. I used to own that Challenger - Had Arlen put a leaf-link susp back under it and had "Squeak" and Bruce Miehls(ex-Rod Shop guys) build the Hemi for it. Now in Florida in a private collection.
It is NOT one of Larry Morgan's Challengers - Larry ran two different Challengers but this one is NOT one of them.
Thanks, Reed in Neb.