Would a fuel pump give out after running for a little while? It never happens when the engine is cold, it runs great until it warms up. I will definitely look into it since the PO had an inline pump on the Jeep when I got it for some reason. I removed that and the stock pump seemed to work fine for the past 3 years, but maybe its finally going.
I appreciate the suggestions, I will go get some new spark plugs tomorrow and swap em out. What is the best I can get from a local parts store?