Said cylinder 4 misfire...Which one is cylinder 4?

 

Cylinder 4 is on the driver side nearest to the front of the car... Chances are the plug wasnt gapped correctly. I would suggest making sure its torqued to 22lbs. Or takeing all the plugs out and puting in OEM plugs

 

Replaced cylinder 4 coil pack with new one, fixed problem....While I was at it, swapped Autolite with OEM NGK'S just to be safe...Thanks for your help everyone....Still have that on and off shaking/vibrating though from 70 to 80mph......