Join Date: Oct 2005
Location: Grand Rapids, Michigan
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You have the stock setup. I would NOT do what you are proposing to do. The rear facing driver's side valve cover access point will suck oil out like a vampire. Also if you vent your system and are using a MAF the engine will be getting air that hasn't gone through the MAF from your cap vent.
The stock air path is fresh air in from the center top/pass. side of the TB (which is past the MAF so it's metered) to the pass. valve cover vent barb, through the engine, out the barb on the valley cover to a port behind the throttle blade where is oils up the inside of the manifold and heads.
Catch cans help but my experience is that the differences between most of them is how pretty they look and what color. The size of them is so small and the path so short that it does not condense out all the oil vapor. I did a DIY over-the-top system that is hidden and under $50.
2004 Blk/Rd M6
6.3 litre LS1
Built and tuned by svede