Air/Oil Separator

[Pearman1961]

I am relatively new to this Skymaster Forum. I am looking for info on an approved air/oil separator for the front engine of a 1967B model.

On a related note, I tried to use the search function and entered " stc air/oil separator" I got a message that said;
The search term you specified (stc) is under the minimum word length (4) and therefore will not be found. Please make this term longer.

Any tips?