Like someone said earlier, a skirted Block like a Mope isn't going to benefit from a big bulge on the side of the pan like a Chevy or ford would. Kick outs in the sump are OK for more oil capacity without going lower, but that's about it.

When I finish my next predator engine, I'll be testing it with a huge wet system, then with a complete Dailey dry system to see if power changes. I don't think it'll be anything if vacuum is similar. The only thing I really hope to gain is less aerated oil for the bearings