This is a complete, original 1955 Holley 4V carburetor which was used on all 1955 Thunderbirds and those 1955 Ford passenger cars and Mercurys which had the 4V carburetor.  This carburetor was removed from a running '55 Thunderbird 2 years ago but should have a a gasket kit installed. The original Ford ID # on the base is "ECK-9510-D" and Holley "List - 957-1."  Everything on this carburetor works like new and there is no pitting in the venturi barrels.  The throttle arm has no play and there are no additional holes drilled into the throttle arm.  The fuel bowl is complete and as clean as the outside of the carburetor.  It includes the brass fuel line inlet with the screen and spring and the air cleaner mounting bolt on the top of the carburetor.  This carburetor will need a new gasket kit installed.  See my eBay Store for the original 1955-1957 Ford, Thunderbird and Mercury carburetors and parts.  Payment is expected within 10 days of the close of the auction. We charge actual shipping, are glad to combine shipping or your welcome to pick up the part at our shop. Thanks!