I had my 1978 L48 4 speed judged and I was told that there should be an A/C idle control mounted on the right front corner of the carburetor.....wired to the A/C compressor. I have had the car since and don't remember ever removing such a component. Does anyone know what the component is , where it can be purchased, hookup etc? I have searched a number of documents to no avail. Thanks.