83SC - mild popping on decel, but nothing has changed
 

stock 83SC with the exception of a dansk pre-muffler. car has been great for a long time now, including a nice run yesterday. take it out today and i am getting some mild popping, but more like sputtering, on decel while in gear. when downshifting, say from 3rd to 2nd, i get a much more pronounced pop intitially and then the slight sputtering as it slows down. any thoughts?

Check your distributor cap. The clips can become loose.

Also, the hotter, muggier(not stabbier like in Detroit) weather will affect the fuel burn.

failing Decel valve

Been getting the same sort of thing but, only when cold
When she's hot nothing :confused: