Quote Originally Posted by 34_40 View Post
Try this, LeadFoot's Rochester Identity Guide

or try typing rochester with that number into Bing or Google... amazing what it'll find for ya!
Mike,
When I try to apply that code ID guide it doesn't seem to fit the three zero's following the seven. May just be that I don't understand. I Google'd the number and found it referenced in a lot of eBay offers for old parts, other forum queries, etc, etc, but in the ten or fifteen minutes I invested I didn't hit gold. Again, may be that I just quit too soon, or left that one link unopened.

67Chevelle19,
Welcome to CHR!! Have you tried visiting your local Chevy dealer? It looks to me like the casting numbers were somewhat sequential, and if so it seems to point to something in the mid-60's, like maybe '66 or there about? One link showed PDF's of Chevy Parts Counter cut sheets listing carb parts, but it didn't go earlier than '69 so no joy. Also a place called "Mike's Carburetor Parts" (link Welcome to Mike's Carburetor Parts - Your Number 1 Carburetor Parts Store )that seemed to have a ton of good info, and lots of people asking him questions on his blog. Might be a place to try? Good luck on the search, let us know what you find (I'm curious now....), and we hope to see you back.