Description Primary Injector Spacers for Primary fuel injectors when installed in the FC3s (13BT) engine. These spacers are designed to fit top feed injectors into the primary injector ports in the center iron. This item is for the PRIMARY location only and will not fit the secondary injector locations. these spacers are longer than the other spacers we offer fo the secondary injector locations. These spacers are sold Individually. These primary spacers will only fit FC primary injector locations.
