Engine: T5: Aircon causing positive PCV pressure?

[Verracciii]

Hey,

I recently bought a 2001 S60 B5204T5 from my dad for cheap and it understandably has some issues. Very recently, it developed a very critical oil leak after the intake cam gasket seal was blown out. This was replaced.

From what I understand the gasket might have been blown out from a mix of an old seal and the aircon working on low rpms (?).

I have done the old glove test on my oil filler cap, air con off leads to slightly negative pressure. Air con on leads to just borderline negative pressure, but the glove does not inflate. My dad says it would help if the car revved higher when the air con was on but it does not. I was wondering if my PCV is clogged or if this is something I should even be that worried about if the pressure isn't necessarily positive. I am just paranoid about any oil leaks since the cam intake gasket seal came out.