using the top, forward intake-cover port (driver side) to vent to a hose with a mini-breather air-filter on the end. I think he also said he has run the car without that mini-breather air-filter and did not have terrible oil venting issues because that port is baffled by a plate in the valve-cover. Apparently, the oil just can't make it to the hole and so mostly just "gas"-pressure escapes, and I think that is the main goal. I wish the pics would show. Wish I could remember where I saw them. I thought it was the ones with that post I submitted here.