Me defining mild is something like a 210 or 218@.050 cam.
If your interest is longer drives and efficiency/economy, 2, 1848s or the factory 3x2 actually do as well if not better than many 4v.
I agree. That is very mild. I'm not even sure a profile like that is available aftermarket? It is probably a custom grind.
That application is likely industrial for something like an irrigation engine used with constant rpm? It likely would have upper rpm limits of something like 4,500 to 5,000 rpm regardless of the induction potential?
Ironically, those applications don't wear the valve train any better then a 237 @ .050 or more.
So really a multiple carb induction with that mild a cam would just be for show. Traditionally multiple carbs are used for more power. The engine needs the capability of pumping "more air", not more glitz with more maintenance, but, to each his own, but I don't see the point.
I DO recall people in the mid '60s with 289 2v Mustangs "scoring" a find of a 4v carb and intake and installing them without any other modifications. Their disappointment was emphasized by the car not going any faster or having more power but with just greater fuel consumption, and advice of "don't make the same mistake" as they did.
Induction improvements are not just a carb change. The entire induction system needs to work as a complimentary package. Multiple carbs systems require more cam, not less.