Magnum wagon engine swap thought

I have an 06 Magnum and I love it. It's a 3.5 and has plenty of power.
There is a guy here in Cincy that has a carb 340 stuffed into a Magnum. I spoke with him, he claims it wasn't that tough and everything works the way it's supposed to.
Really? Maybe I need to give it more thought and research on this. And maybe I need a factory hemi one and a carb 360 one. Lol. Well maybe not both, but seriously I may need to do my due diligence and research more the carb one. As they are cheap as heck around here for non running or poor running ones. Thanks for the info.