Stromberg 97 help

[rhpope]

I have a large logo 97 that looks like it has been rebuilt sometime in the past due to how clean it is and it looks like it has been yellow dichromate refinished. However, upon disassembly I noticed that the bottom part of the venturis where it slides into the cast iron base has corroded at some point and is partially missing. See attached pictures .

I have read that some say that the main body of this is junk and needs to be replaced because of this.

Does this affect the function of the carb so much that it will no longer at least work”o.k.”?

Would this kind of defect cause it to run rich and foul the spark plugs because it somehow messes up the vacuum signal in the venturis?

I have read, but don’t exactly remember, I know it causes some sort of disturbance in the air flow through the carb. What happens if the choke butterfly assemblies are removed?