As Byron has suggested, after two successive and rather abject camshaft
failures, I would probably strip the engine completely down, get the block
tanked again and once clean, check for any misalignment of the camshaft
tunnel and carefully check for any cracks. Cracks in certain places can certainly
cause oiling-related problems. If there are any 385 experts in the area, get them
to inspect the block as well, the more eyes, the better. Hold off on installing
new cam bearings until the saddles have been checked for cracks. Clean, clean,
and clean the
oil galleries before doing reassembly. Spun camshaft bearings
aren't unknown in 385's and it can be an expensive fix. But there is no reason
a flat tappet camshaft shouldn't live in your 385 especially with low seat
pressure springs.
....Fred