https://www.facebook.com/groups/stiffspeed/permalink/1102729043207044/
This wasn't a one year show, it must have went on for around a dozen, to have the Mustangs and the Maverick, which wasn't available until late 1969. Before the Mustang they did the show with Falcons, Fairlanes, etc.
Programs are on Ebay for as early as 1959, and as late as 1970
http://www.worthpoint.com/worthopedia/mustang-auto-daredevils-tournament-129189214
http://www.ebay.com/itm/302233811931?rmvSB=true