[Paul Gillespie]

Got to ask why that #3 plug looks so poor. I put a new motor on my Cobra this summer brand new plug wire was bad. I had pulled my plugs and had one that looked brand new. when I restarted I put the timing light on on the wire in question and found that is was not flashing steady light but was flashing some. I replace the wire and got a contast steady flash on the timing light issue was resolved. My cobra is running a 331 fuel injection with a 10PSI blower so in my case the plug was getting washed off injector under boost and the fuel was igniting in the pipe. With what you see in that picture #3 is not firing correctly so I would start looking a the cap, the wire, and the plug.