Hey Guy's Wonder if a vacuum pump would help? The other thing is painting the inside of an engine. I had bad issues with using Gystal paint inside the block. It flakes off over time and clogged my sump and killed a motor. I was told the perparation was not done right. I now just polish the inside of the block to help
oil return to the
oil pan faster. Dry sump system do pull a small amount of vacuum without a pump. I would guess about 5-8 hg of vacuum would be in the ball park. I know with the FE heads and if I had room there would be external
oil returns to the oil pan. I may do this with the next motor. Same applies for helping the oiling system with getting more oil to main cap#4 and rods. Stuff to look into. Rick L.