Was able to get vacuum removed…. I thought the vacuum moved an arm within the distributor attached to vacuum advance….on mine it appears that the vacuum arm is bolted to a adjustable arm that then rotates the actual distributor body? Is that correct? Or a. I missing something? I thought the arm moved and was related to the spring mechanism within the distributor …my first time doing this ….I don’t think this vacuum has ever worked since I’ve owned it I. Early nineties …it is definitely not working…any advice prior to my new unit arriving would be great!!!