Mikes was out of pamco kit I needed so I pieced it together myself. It seems that I ordered the wrong ngk spark plug cap because it does not fit on the ngk iridium plugs. Does anyone know the part # of the correct ngk 5k ohm resistor spark plug cap that works with the ngk iridium plugs in the high output pamco kit?
You probably have a cap that works with the threaded terminal removed from the spark plug. Or, just the opposite. You have a cap that needs the threaded cap on the spark plug. The terminal on the end of the spark plug is threaded and removable.