Was getting ready to check if replacing the rubber "Y" vacuum fitting located on the top of the intake manifold behind the fuel distributor would allow car to cold idle. Decided to recheck vacuum connections and discovered the axillary air valve hose between the valve and the idle adjust housing, the one with the vacuum nipple molded into the hose was split at the vacuum connection. This also had to be leaking air into the intake manifold. Will pick up new hose by the end of the week.