with Mopars you can pull the lifters using a strong magnet through the openings in the head & look at them without removing the heads
You can also install the lifters the same way if you ever forget to put them in before you silicone the intake down, paint the motor, and install the distributor. So I have heard, anyway!
If you do find a flat lobe I'd pull the motor and have the block vatted out. Most of the time you can just clean out the pan and replace the cam and lifters, but if enough metal goes through you can also wipe a rod or main bearing.