C8OZ-6A664-A Original used hose that connects the original PCV valve to the carburetor spacer plate. All 1968 X code 390-2V engines. Used hoses will have faded striping (if present), and clamp impressions. Very often the rubber will be hard and showing some degree of stress cracks.
*Note - These molded and contoured hoses were designed to work with an original style PCV valve (modern 90° PCV valves won't work). Additionally anything other than period original intake manifolds, valve covers, and spacer plates can also alter the position and distance in the relationship of the PCV valve and carburetor spacer plate.