The vacuum line to the EGR is stock. The rubber hoses from the PCV valve are where Dave made modifications for his water vapor separator. It pulls the oil vapors through a separator, then the fresh cleaned air is pulled back into the engine. A regular PCV setup will let some of these vapors pass and be pulled back into the throttlebody. His system condenses the vapors, catches them in a container that gets emptied as needed.
Forgot to say that the car's rust free. Maybe the battery tray has some rust, but the rest of the body is solid and clean. Those pictures of the engine were taken when we first got the car after having been sitting in his back yard for 3 or 4 years.