Stromberg 81 question

[nickthebandit]

I have 2 Stromberg 81 carburetor bodies that the accelerator pump hole is the same size as those in Stromberg 48, and 97 carburetors. These are not something that someone hogged out. They are as cast, factory sized. I know of someone else who also has 2 carburetor bodies like that. Does anyone have knowledge as to why these bodies are like that. Any info will be appreciated. Thanks, nick.