Rochester B 1bbl

There are two springs for the accelerator pump. The engine is a 250, 1966 model, Rochester 1 bbl "B" 7045xxx List. Too much snow to go get the complete number at the moment.

I need the top spring that goes over the accelerator pump push rod.

Is this spring the same across various B carbs from the era? Any other Rochesters use the same plunger assembly? Same spring?

Thanks,