Small vid about PCV

I was pretty sure that you were aware that at WOT, CC pressure will build, which will slam the PCV shut, which will force the CC fumes to flow up into your breather and from there into the Air filter house. Usually those fumes will be oil-laden and make a mess in your housing.
But maybe your breather is acting as an oil-separator, which it should be, but heck, yours, since it keeps your line clean, is a really good one!
Nevertheless, if your PCV is stuck open, the CC fumes will pass into the intake under the carb, which is a no-no, cuz if the engine ever backfires with a closed throttle, the flames could enter the CC, and if they find a combustible mixture in there, you could be looking at a bomb.
But I think you knew all that.