curacaoz28

LT1 EXPERT HELP. for some weeks i felt like my car (94z28) was misfiring, i checked the sparkplug wires if they fire okk (with a sparkplug tester) and everything seems to be okk, i checked the injectors see if they click and they do (screwdriver on my ear)... so what i did is use a temp gun and 1 cylinder was a lot colder in comparison with the others, soo i removed the plug (see pic) the plug are there for about 5 weeks, i also notice the gap was very large on the plugs i thought these plug came gapped (TR55 IRIDIUM)