Any 2012 Hemi Upgrade Advice
2012 5.7 is a great platform. The heads flow REALLY well stock, they can be ported for gains, but it’s not cheap... Long tube headers and a cam will give you a really good bump. The cam swap requires VVT lockout I believe. I’d look at comp cams, inertia motorsports or modern muscle xtreme for a cam.
Obviously you’ll want a tune with the cam and other work