PCV has whistle and/or whine

DesertRat said

I tried stock PCV and my engine caused intermittent clacking and whining. Installed the Wagner PCV valve and multiple good things happened and no more noise. My Cal Custom valve covers are baffled and stood off the heads with spacers as well. Didn't stop the noise issue though until I changed the PCV valve.

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The only issue I was really having was the amount of oil I was pulling. I did foul a stock style PCV early on, but when I went to the aftermarket PCV’s that wasn’t a big issue. I was pulling oil into the carb though. I went to lower vacuum PCV’s, but ended up with crankcase pressure pushing gases out of my vent. Setting the PCV to pull what it needed pulled oil too. Relocating the PCV with a vapor separator solved the issue. The adjustable PCV is nice, but it wouldn’t have solved the issue I was having.

Whether or not it will solve the OP’s issue I don’t know, just sharing my experience to give him something to check.