[Formulajones]

That does look a bit complicated with a lot of plumbing.
I've had no issue running a proper pcv in 600+HP engines. As mentioned if using a valve cover for a pcv, the pcv is placed in the driver side valve cover in a typical V8 due to crank rotation.

If it's oil contamination in the combustion process you're looking to eliminate all you need is a simple small air/oil separator can plumbed in to the pcv hose. That's what we did on LS engines years ago because they were bad for sucking oil through the pcv, even when the cars were brand new.

Or maybe it's just time for a vacuum pump