Rough idle after tune up 400E
 

So the other day I did a tune up on my 92 400e. I did caps rotors plugs and air filters. After I did the caps and rotors it ran fine then I did the plugs and air filters and started it again then after a few minutes it started to idle rough. It did not do this before the tune up??? Maybe the gap on the plugs, checked everything over, for vacuumed leaks, next I will pull all the plugs and check gaps. Anything else I might look for??

Checked the plugs, double checked everything else I did all good. So I swallowed my pride and brought it to a friends dad who's a master merc mechanic, looked at it for 2-3 mins and said look at your coil wire it's resting and arcing on the AC dryer! Moved it drove it all fixed!!!