[scicala]

Originally Posted by Y-Blockhead

Paul, Yes. As far as I know the Mercs used the WCFB Carters.

Timmy's page has some good pictures and info on Manifolds. http://m571.com/yblock/intake.htm

Carter WCFB's may have been used by certain people, but there is no factory documentation for it. Only documents show the Holley teapot 1268's in those kits for Mercury and Ford.
The Carter carb manual also shows no such application for WCFB's, however the Holley manual does list a special carb for the 1956 set-ups.