I would pull the plugs and check the gap, Autolites are quality plugs, so you shopuldn't have any probs. When was the last time you:
1) Cleaned the MAF?
2) Cleaned the Throttle Body and EGR passages?
3) Cleaned the IAC?
4) Checked the IMRC linkage?
All of these (and others) could contribute to rough idling....And, all of these "fixes" can be found in the FAQ's ands by using the Search function here.....Good luck my friend!
