Forget Carl Edwards at Texas, I Saw a NASCAR Donnie Allison Mustang Win in 1968 -the 1st!
General
there is a site called ultimate racing history that has a partial boxscore of the richmond GT race. of note... buck baker won the pole in a camaro , but suffered a blown engine in the race. jack ryan finished fifth in a porsche 911, and former cup driver jim vandiver finished second in a camaro one lap behind.
and speaking of yunick, bunkie blackburn drove a black and gold smokey creation in some GT races and if memory serves me , won a race in jacksonville, fla.. yunick tried to enter the camaro in some grand national races later in the season, but was refused by NASCAR.