There are 14 different Stromberg 97 carburetors. They were original equipment of Foorrdd products from 1935 to 1938 (the 1934 used the 48).
My guess is that the small fuel line may have been for an accessory Southwind gasoline heater.
While most refer to the 97 as a model 97 from the 97 cast in the side of the bowl, it is more correctly referred as a model EE-1 for Ford. The model E was the second Stromberg downdraft carburetor (replacing the horrible model D). The double letter meant it was a two barrel, and the 1 meant S.A.E. size 1. Other versions of the EE-1 were used on Buick, Olds, Nash, etc.
Jon.
