I had some of Frank Yunes' (A.O. Eng.) promotional material for the fans. It came with the purchase of a "Forced Air" system. I can't seem to find it now. I think it was re-prints from "Corvette Fever", or "Vette" magazine.
If there's a way to search their archives, I'm sure there are some write-ups, and pix in there, if not a test.
If you've got a pile of those old mags around Tyler, start looking. But don't be like me and and try to read every article you come across