Thoughts on a Four 2bbl intake Manifold

[custom10nut]

I have the opportunity to but an Offenhauser 4-2bbl manifold, complete with the fuel lines and linkage.
This thing pegs out the Cool Meter
For a long time now, I’ve been toying with the idea of building an engine and using a multi carb setup.
My concern is the total CFMs of all the carbs, and how much engine I would have to build to be able to handle them.
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Any thoughts from the Old Timers?
Old School Rules!