Get a hold of Tim Clift (goes by hotrodchev here) as he has done thousands of hours as a historian to Minnesota and North Star Dragways and can likely put you in touch with several of the people.
I raced from the late 70's through the mid 80's (mainly at North Star) and used to live in Spring Lake Park. We raced a multi colored Orange/Yellow 69 Dart and a green 68 Dart and then I moved onto the Perferst and Prince Pro Stock team in the early 80's. Also raced Lake Steet and Central Ave (Sun Drive In) during those times with a black 68 SS427. Welcome aboard.
P.S. .....your cap locks button is on.....