there was an article or 2 in I think Hot Rod mag about it back then, ya just googled it-Feb 1972, destroked 305 with tunnel ram and to Holleys, designed for 8500 rpm.
I have a book that has a write up about that car and there was a bunch of info and pictures about the engine. I know I have it but that book might be packed away. I'll look for it.
OK, I found it. Its in this book.
There's an 8 page story on the build up of the car and the engine. I'll scan the pages and if anyone wants them just get in touch with me.