Welcome to the forum. What year is the vehicle, how many miles on it, any current mods, what kind of budget do you have, and what are your ultimate plans for it?
Ported and polished heads are a waste of $$$$ unless you're going with forced induction and/or nitrous oxide injection. Even then, IMO, with a stock rotating assembly, it's not worth it. Both of my 5.7 Hemi's have ported, polished, and milled heads and they don't deliver near what I had initially expected......maybe only 25-30 hp. Here's what I am talking about: Hemi Head Test - Mild & Wild
As far as a cam goes for a 5.7, "choppy" cams generally have lots of lift, duration and overlap and, with an otherwise pretty much stock engine, you'll end up losing a good share of low end power (worse than stock) and have a lot of driveability issues.....specifically with idle and off idle. With an otherwise stock 5.7 Hemi, IMO, cam selection is very critical and lots of research should be done BEFORE choosing one to suit your end goals. There are a zillion different manufacturers and choices.