Quote:
Originally Posted by bhuff30  04GTMustang is on track. Run the widest gap that your ignition system can support. You will know that you should decrease the gap if you get a mis-fire/spark blow out at full load. So run the stock gap. If it misses, then decrease the gap.
As for plugs, it won't hurt to run a colder plug. If the plug is too cold, you'll get a miss at idle because the plug will foul. |
sweet i was right lol. it happened to my brothers procharged 07 GT it started to miss right before redline put new plugs in and gapped to .035 and it went away.