MedievaL New Member Feb 27, 2004 4 0 0 Warrior, Alabama, USA Sep 16, 2006 #1 Sep 16, 2006 #1 What spark plugs should I be buying for a set of GT40-X303 heads? Can I go to the parts store and ask for autolites for a 19?? Mustang? Where should I gap them? I am running a MSD ready to run distributor with no spark box, just the MSD coil.
What spark plugs should I be buying for a set of GT40-X303 heads? Can I go to the parts store and ask for autolites for a 19?? Mustang? Where should I gap them? I am running a MSD ready to run distributor with no spark box, just the MSD coil.
D D.Hearne New Member Sep 29, 2000 11,730 6 0 south louisiana Sep 16, 2006 #2 Sep 16, 2006 #2 Ford's catalog lists the plugs as being AGSF-32C. Your local parts house should have em.