Left side of tank you see is hooked to a breather plate at the back of the intake and a breather tube to the top of the trans. Right side of the tank has a high and low tube. Low one routes to the
oil pan for condensed
oil, high one connects to a draft tube for vapors that goes out under the car. This is illegal on modern engines as it caused an
oil slick on the road (or track). People usually plumb it into a PCV instead of the draft tube.