Don Yenko and the IMSA American Challenge

Don Yenko campaigned a '75 Nova in the IMSA AC back in the 1976/77 time frame. One notable feature was it's livery - Don Painted it as a cop car, complete with the gum-machine light on top.

I've looked around on the internet for a picture of it or any other IMSA AC cars, with no luck.

I'm just wondering if anyone has run across this subject and where.

Thanks!