The only thing I can think of is to smear a layer of rtv sealant like this below over the holes with your finger. Not too thin but not too thick. Let it dry completely. There's a chance it may peel off though and enter your intake somehow so do at your own risk.
Update: So I fixed the BOV and it is not fluttering anymore.. I am holding boost BEFORE 4500 RPM once again! Thats a relief...
But that sound is still effing there!!
So I got under the car while it was started and got my buddy to turn it off.. The sound is directly coming from the transmission area and it sounds like air coming out.
On further examination.. I think my cats are clogged and theirs not enough pressure for the air to flow thru when the car is turned off so it seeps through the gunk/whatever else is in there.
I am also having rev hang and knock at low RPM's with partial throttle. I am assuming the exhaust restriction is causing all the BS associated with it!
I've had the supercharger on for about 18K KM now (11k miles).
Those are honestly really hard driven miles. I floor my car pretty much every time I drive it LOL!
I'm going to get some mak cat deletes.. That sound is killing me. I think their plugged pretty bad.. Hope I can get some deletes by next week!