Convince me to not use this carburetor.

makes sense now that you explained it. That info probably should be in the first post so folks know the details. In your first post all you mention is the price of 2bbls for a slant six, so I think you are looking for the cheapest 2bbl for a slant six. I bought one cheaper than what the link you posted, so I posted my link to give you another option.
Yes sir, you are right. I did not give the full details. But, I am very happy that you posted a great carburetor for a great price which may work for another member in this forum whom is trying to keep the budget without pissing off the wife.