Chrysler New Yorker idling rough

[Fred A]

hello, I have 1978 Chrysler New Yorker 400 engine and it is idling rough.Any any ideas of possible causes? has new spark plugs, wires, rotor, distributor cap.

 

[bronze turbine]

Timing adjustment, carb adjustment, uneven compression. Just a few thoughts.

 

[65Port]

What were you trying to fix when all of those parts were replaced? After checking the above mentioned by bronze, have you thrown a vacuum gauge on it? Is the rough running only during idle?

 

[Fred A]

The car was on storage for many years.

 

[Fred A]

Timing adjustment, carb adjustment, uneven compression. Just a few thoughts.

Do you think it is the spark plugs? Used ac Delco 43s and was hard to snap the wire on to the plug