oil leak appears to be coming from the top of the motor. There are two hoses from the cam covers hooked up to appears to be a vent valve? There is also appears to be a small vacuum port on this valve and I was wondering if the engine vacuum should be hooked up there and also on the vent side of the vent valve there is no hose attached and i was just curious if a 5/8 inch hose should be hooked up and possibly hooked up the engine or else where?