vacuum advance idle issue?

66 /6 basicallydart stock...I thouht id set the timing before i drove over to the shop to do the breaks. Noticed niether the chocke vaccume or the vaccime advance where MIA...thought it might explain my mysterie rattle if myim tinings retarted. What coulda whover dithed the advance and reset the timing to work without havethe possibly done towrong a slanrt to runthe like this? Soooo, in theory i set #1top dead senter alighn the dizzy do everything as the book says and it just wont idle right when you hook up the hose for the advance off the dizzy. i dont have any special tools wanted to do this befori drove it anywhere else. But it makes me think the carb is not working right or the distributer is bad/wrong. Im sure the answe is very simple... who knows how to find the bad part ir what might be going on...iv got good spark and get get it to run real good all hooked up, but it just wont idle without pings' pops and carb backfires. I end up setting the idle WaY to high, even for an auto cus when i put it in gear it sounds like hell runs like shate till you punch it and it wakes right up. Whats goin on...