Wrong, unless you want to make #6 cylinder run lean because you're trying for a shaky idle and pinging and eventual damage in that cylinder! The PCV needs to connect to the intake manifold plenum. Any carburetor originally intended for a post-'62 Chrysler product (and some before that) have the PCV port on the throttle body. If a non-Mopar carburetor is used, a port can be drilled and tapped into the plenum. On '73-up intakes with EGR provisions where EGR is not being used, the blockoff plate is a perfect location for drilling and tapping in the necessary nipple....