With the Limited oil return on the Block if you're doing a wet sump I would also recommend external drain Backs from the head to the oil pan this enables air to come up so oil can go down in other locations
Let me ask this, wet sump, what about drilling holes from the cam tunnel valley to the crankshaft, I know, I know, windage, it's an issue but is it really on a deal were you're not looking for every last HP?
I believe on a wet sump I would do a lot more work on oil return. I'll do that on one of the engines I'm going to build because it will be wet sump. I will look into all options but putting hole into the cam tunel to the crankshaft area would help. It might also help to return oil from the valley even though it is open in the back.
I will keep you guys posted.
