Question for carb experts

[Herman Munster]

Does anyone know if it's possible to convert the early type Autolite 4100 to use a the later model accelerator pump. The older type uses a longer accelerator pump and the latter a shorter type.
The longer one gets in the way of the water heater valve on intake manifold which I have relocated elsewhere for now. I'd like to keep the stock location which is why I was wondering it's possible to convert the carb.