Velocity Stack - AMAL 900 series carbs for British motorcycles

Old's Cool Choppers

900 series AMAL carb screen top velocity stacks
We have Two lengths available, and Two screen types  
The ID of the threaded end is 1 13/16", the OD of the bell end is 2 13/16"

Short Flat is 7/8" 

Short Dome is 1 5/8"

Long Flat is 5 1/2"

Long Dome is 3"

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