Yes, more torque/bottom end, at least that's what I've heard. I personally just have a strong dune port and it runs fine.
As for going with a cub and it being more reliable??? I don't see where this argument has a basis. I mean if ur pockets are deep sure, if you won't be doing any trail riding (at LS there are some "dune trails") then a cub might be ok. I've never ridden a "stocker" cub, only one's i've been on are dragged out so....
For the money of a stocker 4mil I can't find another reason to go to a cub.
Also on the stock bored carbs, by the time you spend the money for someone reputable to do that you could almost have a set of 33 or 34's I would think. But to each his own. Some kind of budget would be nice to know on a thread like this as well.