The PCV on the back side of the valve cover goes into the base of the air cleaner. There should be somewhere to plug it in, and the kit should come with the hoses and everything already. The one from the front of the valve cover (with the PCV valve) should go into the baseplate adapter that comes with the Weber kit. There should be a fitting that screws into this to allow you to plug the rubber hose in. I'd use some RTV or Teflon tape on the fitting just in case to prevent vacuum leaks. As for the distributor vacuum line you need that for vacuum timing advance. This goes into the carburetor base on mine. There should be a small tube that you can plug it into for vacuum. Hope this helps...
1986 Jeep CJ7 4.2L I6 T176 (restoration in progress)
1961 Willys 4x4 Wagon L-226 I6 T90 (restoration also in progress)