the block vents through the black box. There is nothing to cap off on the block. Some people run a hose to the exhaust for vacume to assist the whole venting process but its not necessary. all you have to do is run a hose from the black box to the can . remove the pcv and cap the intake manifold with a rubber cap you can get at any autozone/advance. then run a hose from the nipple on the valve cover to the other side of the can. But make sure your running a catch can with a breather, not one of those sealed oil recovery cans...