Priming 340 engine and rocker arm oiling.

I must admit, I've installed literally hundreds of sets of cam bearings, I'm sure. In all those, I've never seen a set that lined up all of the holes on an individual perfectly. I bet it would be a good idea to get a long drill bit and run down the oil holes and drill the oil holes in the bearings out to the size of the holes in the block. Sure couldn't hurt.