[Rayfield carburetor]

I have a Rayfield carb 3 barrel on a 1930 Willys 98B. The car looks like it should have some sort of air filter but was not on the car when I purchased it. Should it have an air filter and do they still make them?

[Stewart vacuum canister]

Looking to purchase an 8 screw top Stewart vacuum canister for a 1930 Willys sedan. Pics of the 4 screw I need to replace is added. 

[Stewart vacuum canister]

I am looking for someone to rebuild or replace a Stewart vacuum canister from a 1930 Willys sedan. I spoke to someone in New York but he won't do a 4 screw top, only 8 screw. Pics included.