The entries at these races are full, and, to be frank, they don't need the E bodies and Camaros, and other pony cars. There is no shortage of "legal" NSS cars.
You would have to consider me a purist in this regard, as I agree totally with the rules as they are. Keep it to big cars, two four barrells, 62-67 with the exception of factory "package" cars. For my money, the 422 All Stars, and the manner in which it is run is what I like the best, and I've tried most of them.
If they want to make a Nostalgia Pro Stock class, for E bodies and pony cars, have at it.