Doing brakes on a 72 Dart. Any upgrades or pad advice?

If the 4-piston K-H calipers (64-72), insure they have the upgraded stainless steel pistons. A magnet will tell. The SS pistons are cheap (rockauto, ...). Rusted pistons was a big problem on early Mopars and Mustangs, and what started the Stainless Steel Brake Company. Please state your car year and such when asking such questions.