Those coils were used in the mid-late 90s when they needed to run BIG plug gaps to avoid misfire codes (sooo....after OBDII, which became 100% models, all manufactureres, in 1996.). My coils are from the 4-cyl Rangers...they could be pretty lean and still make fat spark. The two coil pack has 4 plug wires and two trigger/signal terminals, so they are for waste spark. I was steered onto these by Pectel, the folks who made the EFI systems for Ivan Stewarts trucks (TRD), as well as the Ford WRC turbo car EFI systems. I ran Pectel T2 in our roadster; will only run 4 cyl....T6 could run anything up to 12 cylinders.
sorry bout the late reply....days get shorter and the nights get tired-er.
JimL