in picture #1 you'll see the original down draft tube. I cut off the part that goes down past the pan and welded a cap on it. I then cut a hole in the cap, intalled a rubber grommet and a pcv valve....from there, i ran a vaccum hose up to the firewall into a Jegs oil/air separator (picture #2)and out into in another foot or so of vacuum hose and into the intake manifold where you pull vaccum off for various items i no longer use. Picture #3 shows the cap on the valve cover instead of a breather cap and picture #4 shows a similar set up from the assembly manual. Any pressure in the pan is getting sucked by vacuum throught he PCV valve and back into the manifold.