No idea what this hose does. A few drops of oil come out each track day (I tapped a bottle onto it to find out)

Any idea? Should I put a breather on it?

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Can I do the following to delete my PCV:

1. Put breather on existing PCV valve
2. Plug port on passenger side that used to connect to PCV Valve
3. Plug port on intake tube that used to connect…

cliff notes:
bought a 2004.5 350z that was sitting for a few years
changed all fluids
changed brakes (07 brakes)
drove to alignment shop, felt the car getting sticky in the rear on my way there…