Update: Well, my car wouldn't start the other day. I had to mash the gas to start it. I assumed it was the fuel regulator and cold weather but I took it in anyway. They couldn't make it happen again, of course, but I mentioned the bucking to them. They took it for a test drive and said it is definitely misfiring. They checked the exhaust: no catalytic converter problems. Hmmmm. Well, they looked at the car and said they notice I changed the plugs but not the wires. I had totally forgotten. I took a drive over to NAPA. I bought some wires, took it back home, let it cool down overnight, and changed them out. By the way, I really wish the engine wasn't mounted sideways. Pain in my ASS! Anyways, I changed them out, started it up and took it around the block. That was the problem! . So after I got home, I looked at the old wires. Wow. One was burned. Looked like it was arcing on the fan blade cover. There was another that surprised me. Underneath some wire loom, it looked as though someone tried to TAPE the wire together or cover a hole. It was wrapped it some sort of metal. Anyways, the problem is solved. Thanks to everyone who put in their input.