NPN 273 Aluminum 4 bbl Intake Manifold-prototype

So because this is a one and possibly the only one of these intakes "who knows" that's around it would be a crap shoot 1st to see if it worked on my 273 and 2nd would it be any good as far as performance like the cast iron ones only lighter, you can see that it has never been used. Or would something like this be better off just being garage art.