I need one of these adaptor plates that goes on top of a Holley 2 Barrel carburettor.
I think this was an adaptor to allow the air cleaner to be shifted forward slightly so as to not foull the hood latch mechanism on forward opening hoods such as my 59 Mercury.
I have the air cleaner buit I can't fit it without this adaptor.
Has anyone got one for sale? Help !! 
Picture taken in 1960. Funnily enough it still looks like this! 
1959 Mercury Monterey 312 Y Block. NORFOLK, ENGLAND, UK.