Wasn't someone looking for one of these? The auction's over but it'll probably be re-listed, or you can contact the seller.
http://www.ebay.ca/itm/ws/eBayISAPI.dll?ViewItem&item=190626970132&ssPageName=ADME:B:WNA:CA:1123
Barry -
2 x 68 Beaumonts, 1post, 1 hardtop (projects)
2x 65 Chevelle 300 deluxe (projects)
69 SS396 300 deluxe post
Fredericton,NB
The ad is mistake I believe , that is a carb for a 400/455 auto. The carbs ending in 270 or 273 are the ones for RA engine our member was looking for. That is a pretty rough looking casting but they are getting hard to find.
Ray White, Toronto ON
1973 LeMans 454 "Astro-Jet"
Built March 9, 1973 - Oshawa ON
1993 Corvette Convertible LT 1
Built January 10, 1993 - Bowling Green Kentucky