Intake manifold options for a Magnum 5.9/360

The engine that I might be getting has an M1 single plane and a cam bigger than I prefer. This is the 380 HP version 360 that Mopar Performance sold for many years.
I won't be drag racing this car, I want low end and midrange power. I don't care to run it over 5500 rpms so a single plane isn't a good fit for me.