Hot Rod Magazine had an article about the car, January 1971 issue. I have the magazine and will scan it for you when I find it. It will probably be after the 1st til I can look for it. I do not believe it was ever raced. as I have not seen any race photos of it. Later in the year he raced the previous years Mustang, but had gone to turbos instead of the blower. If I remember correctly.
Let me know if you want a scan of the article.
terry