The only other pic I have of that car is this...I may have posted it before. It came to me in an email from a guy named Tim and said he was good friends with Denny Manner. It sounded like he worked at Buick...lost that email.
There are some great vintage race photos on another thread also. Vintage Len Immke GS race car photos
Try the search function and look for posts with 'vintage Len Immke race photos'. Or maybe someone can post a working link?
I thought I would post a picture of the KB/Reynolds car with the Motor Wheel Spyders back on. They were on the car in a lot of early photo's and were on other factory back GS's from that time....And I now know why and the connection. Also thought they were ugly wheels when I first saw them...now I really like them, it kinda "dates" the car.