[Alan in AZ]

Well its a complicated question and there are many opinions of what to do. The oil ingestion into the intake is a bigger issue for later engines (esp. GTS). If you have no concern on oil usage or oil in the intake - no need to do anything. if you have excessive oil usage or a very oily throttle body you may want to think about it...

If so a part of the oil ingestion is from the breather ports on the oil filler.

General options are to add a baffle down in the crank vent below where the filler goes, and perhaps to relocate the breathers from the bottom of the filler - which means they need to be capped off down there - this is all harder once the water bridge is back on... so the question should be asked (and answered) now...

Alan