I say it's an old silver claw.

But to get all the specs phone: (706) 864-8544 and speak with one of the tech gurus.

I don't have a I.D. mic. around the house anymore. It's called good friends help theirselves. Just haven't bought a replacement. It looks to have the exact same size as my 900 C&S blow through. Roughly 1 3/4" around. Until I can find a mic that is the closest I can get you. Thanks

Thanks for the # Chevyguy65. I called them and found out it is a SilverClaw 850. And for you Margaritaman, they had to go in the back and find the books that was in the archives to tell me what it was. Now then I don't know if I should use it, sell it, or stick it on ebay as " OLD ULTRA RARE" Barry Grant silverclaw and see if there is any history nuts out there, LOL. Thanks again for the heads up on the #, should have been my first stop. Never did find anything online.

I'm sure with a kit and cleaning it should work fine, pretty sure all the demons, claws etc take regular holley gaskets.
><Cp