In my case, can I use the draft tube to draw the air and connect to the intake manifold with a PCV valve in some of the plugs it has?
I must have read on some thread that the oil should be changed every 1000 miles if no filter present, I don't have the maintenance manual. So with or without filter, change should be at 3000 miles. Dumb question, what would be the benefit of having the filters (either by pass or full flow) on the engine?
