Update: plugs are gapped and in the car, the sputtering is not as bad, but still there. Also the idle has become more erratic, definitely jumps suddenly about 400rpms every few seconds or so. The #4 cylinder still fails to operate, the wire-pulling test showed no change in engine performance when i pulled it. I also noticed that the #4 wire would spark whenever it contacted the spark plug chamber through the rubber sleeve? I'm thinking change ignition wires maybe or is that normal? I'm gonna take the cap off the distributor cap and inspect that. Also 2 of the metal contact tubes inside the wires came out when I pulled them off. I tried to be gentle but I had to wiggle them alot to get them out.