1998 Dodge Stratus Distributor Replaced and still Surges

I have a 1998 Dodge Stratus ES and for 3 or 4 days I noticed a surging or bucking while driving that had never happened before. It happened while cruising, accelerating, and idling. The car would sort of hesitate and buck for a second and then return to normal. I made an appointment to bring it in on Friday, but Thursday morning while driving the engine died and would crank, but not start.

I had it towed to a local repair shop and they tested the fuel pressure and said it was fine and then tested the electrical system. They said there was power going into the distributor but nothing coming out and I needed a new distributor. I spent $600 dollars and had the distributor replaced. The car starts and runs now but it is still surging and bucking just like it was before it died before. I feel like it is going to die again soon. I don't understand why it is still surging and bucking after the broken distributor was replaced as it can't be a coincidence that the surging started happening 3 to 4 days before the distributor died.

Any ideas what the problem could be?