I ran the contour out of gas here a couple days back, then got her going again and pulled into a gas station and filled her up.

This is obviously not something I like doing. Now when the car is idling and it seems the whole way up there us a stuttering.

I am not sure if it is because I fouled a spark plug or not. I am leaning that way, I replaced the fuel filter hoping that would help but hasn't as of yet?
Any Suggestions?