38D

Where do the two ports on the bottom of the AOS go/do? They appear to go to the crankcase. I assume one is to drainoilback to the pan, but not sure what the other is for? Anyone know?

#3 and #4 in the attached

https://m.imgur.com/uyfMhj7?r

968workaholic

#1 connects to the intake manifold to provide vacuum to the crankcase. #2 & #3 connect to the to top of the cylinder heads, #3 via a bellows boot and #2 via a plastic cross over hose. #4 is the oil drain back into the crankcase

sniperonhigh

We are going to need more pics - you know, like your avatar.