[John Rogers]

Well you appear to have the hoses hooked up wrong, I.E. the single vacuum connection does in fact go to the retard side of the distributor. Having it hooked up to the advance side will cause the advance to kick in at idle which is wrong. If your idle adjustment screw does not get full travel there may be dirt of goop from the gas in the port. If you take off the air cleaner and then remove the screw and spray some carb cleaner through the hole, you should see it come out inside the throttle body. If not, then a through cleaning is in order. Good luck.