The 360 can make more than enough power to have fun with, even as a mild build. If I was on a budget, I'd just drop it in as is and run what you brung; no mods whatsoever.
Well except for the M1. With the cylinder pressure around 150, and the supercharger app, it's probably running a smallish cam, so the M1 will be a bit lazy on the bottom,without the super. If I'm right about the cam, that engine will be wanting a dualplane, or a small-plenum single.Which one won't matter much, unless you have to buy a new one..I have found the AirGap pretty good right from the get-go. It's good value for the money.