383 build no power

Why not tell him that the mopar cam has to be advanced (no adv built in)and the issues of having to idle it at 1200 to drop it in gear and try to keep it idling at 600 without carb adj. to keep the idle rich enough or the bog when nailing it because of a too tight converter. Sure it will run with that cam and hell a 280 at .050 cam but i dont think it will be enjoyable for the street.If he puts it dot to dot if the cam was ground correct it puts it at 106 icl.