Stock magnum bottom end with tricj flow heads what cam?

You can run low 12's with a dyno tested, 30 month warranty engine for 5k as a longblock....3200 for a top end is insane to back on top of a used,stock, shortblock. IMO

BluePrint Engines 408CI Stroker Crate Engine | Small Block Chrysler Style | Longblock | Iron Heads | Flat Tappet Cam
i would think for that price it should be internally balanced. External adds additional cost.