Regarding
Who cares if it is a one or 2 barrel carb.
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I think the person who buys it and tries to install a 2 barrel carb on a single barrel manifold to find it won't work will care.
I've helped many a restorer who was dealing with incorrect parts that won't work on their car. And when I say "incorrect " I mean functionally incorrect (dual throat carb on single throat manifold etc.) as opposed to emblems or hose clamp etc.
Just trying to help anyone who might be interested, to understand what they may have to deal with.
Again, if that makes me a nit-picker in some person's mind, I proudly wear the hat.