Whoa... Slow down...
Don't jump to conclusions cause the internet says so.
First, check valve adjustment, spark plugs, wires, compression.
While it's totally possible the rocker is damaged or worn, start with the basics.
"Keep it simple, stupid".
mhub, thanks! I had replaced plugs back in January and that didn't do it. I built a set of 8mm Accel plug wires for it a week later and that didn't do it. I changed fuel filter shortly after and that didn't help.
Last week, I put a new distributor cap on it (old one was about six years old and I had sanded the corrosion off the contacts at least once) and that didn't fix it. I put a new rotor in it today...the old one was....old....like I put it in the cap in 2008 right after I bought the car. It had a discolored spot in the front of the metal strip that I couldn't sand out but I've seen a lot of rotors with worse doing fine. After changing the rotor the engine idles better. The cylinder that was dead is cutting in and out so.....maybe it was a combination of bad fuel and compromised ignition components?