I found one in a yard in Greeley, hoping it would fit my GMC 302, no deal, since it is for a Chevy. I did look into the CAW, and the address. I don't remember the gentleman's name, but those were his initials, since he owned the home at that address. He and his family have been gone for a long time and I couldn't find any heirs in the phone book.
I seem to recall that neighbors said all the goodies (to us, junk to others) was sold off or hauled to the dump. Sorry.
It is a good quality product, shouldn't be too hard to make copies for both Chevy and GMC. Wasn't there an gentleman a while back who said he had access to a foundry?
While we have the time, the gentleman who has all the molds for Ellis manifolds lives in Denver and I have been trying to get him to see if he would make some ones. Any interest? Let me know.
