Edwin is too stubborn to come on this site and share due to past experiences with "fucktards." Also, if I were to cut and paste, our boi would be pissed off.
This is what you need:
The part number for this PCV valve is JE26-13-890 and retails for $20.25
It comes from the 92-95 929 JE-ZE engine and has also been used in the Millenia's KJ-ZEM engine that makes ~14psi of boost. The significance is that it is a direct fit/replacement for the stock piece. You will NOT have to hack up your plastic cover, or remove it to make the valve fit/work. If you are able, pleas get access to read the rest of the thread. Some interesting info there!