Just got done installing a quadrajet to replace my edelbrock carb, which was horrible offroad. It has been a while sine I messed with a q jet and need to know which port to hook the distributor vacuum advance to. The truck I pulled it off of had it (as you are facing the carb on the truck) on the very lower left, is this right? There is also a port on the right about halfway up the carb body, was this for the cold air block off on stock air cleaners? It has a cut off hose with a screw in it. Thanks for any help.