Oil pressure concerns, fact or myth

There's pressure, then there's volume of flow, wash. I read or heard somewhere that GMs 305 being a cam eater was because there wasn't enough wash to lobes and lifters engineered in , even with ample oil system pressure.

Why stop at a 305. All small block Chevrolets are. I never took out a lifter that was not dished from a stock small block Chevrolet.