Can someone please school me on 340 air cleaner

I’ve used the search function and I still don’t get it..

I want this air cleaner on my 318 not to deceive anyone but I like the period look.

Questions:

Is this a 340 air cleaner and was in only avail on 71-72 340?

is there something without a snorkel that looks mighty close to this?

Why does it cost $600 bucks?

Will it fit on my edelbrock avs carb?

Does anyone repop it?

where is best place to get a
Nice one?

Thanks for the history lesson