Oversized Tillotson - what does it fit?

[mcgarrett]

Got this interesting, larger than normal Tillotson in a box of carburetors. Anyone out there know what cars it might fit? Has a 1 5/16" bore as opposed to the Model A version which is 1 1/8". Has an accelerator pump but does not have a GAV/choke mechanism - instead it uses a flexible choke cable. Possibly a replacement for the Zenith used on the Model B? I wondered if the intake manifold throat was bored out to match the bore of the carb would it work on a Model A. Would appreciate more information on what cars it was designed to be used on.