Dear mr Lucky,
I am currently working on a Schebler model O carburetor.
It belongs to a Buick 30 31.
I see that you have the same car and model carb.
Do you have any diagrams,manuals or drawings of the model O?
All we can find are other models of Schebler/Marvel carburetors.
Looking forward hearing from you,
Sincerely,
DJV
Located in the Netherlands