Well, ended up having to work yesterday, so changed out the coil tonight. Seems to run better, but after I drove it for a little while, it acted up again. Going down the road and started cutting out, backfiring, the whole nine yards. It cleared up and then I couldn't get it to do it again. Came back home, pulled in the driveway and the idle dropped. Seems like the longer I let it set and idle, the lower the idle got. I'll change the condenser tomorrow night and see what that does. It had a little bit of a surge going down the highway, but that has disappeared. Thinking the coil has been on its last leg for a while now.