I find it interesting that so many people find original cars "boring". I find cars like this somewhat interesting (adding EFI to a 440 isn't that common). It isn't easy to make these old cars run well as originally equipped, but it can be done with stock parts. With a lot of these modified vehicles, they never seem to run well despite all the "upgrades" done to them (headers, performance camshaft, electronic ignition, Edelbrock carb and intake, flowmaster exhaust, etc.(yawn). With the Edelbrock carburetors, for example, they omit the bowl vents, which in high temperatures sure doesn't help hot restarts. And so many of these "upgraded" cars don't even have the throttle or transmission kickdown link adjusted correctly, so performance suffers. It is so rare to find a really original, well done vehicle anymore. I am so bored with all the "genius" upgrades out there.
This is a T code standard 440, not the available 440 HP engine (U code). So you believe it should have a 383?? New Yorkers were usually well loaded cars, so there is nothing out of place in having the available HP engine in this model to me. Mine has it as well as the tunnel mounted cassette player and sun roof, as one example. If anything, the high impact color might be viewed as inappropriate in a New Yorker, but a real 440HP engine would be proper to me.