I agree that ls coils are better, but I have run the AEM for five years using the factory ford distributor, and don't have problems with it, a couple of years ago I replaced the cap and rotor with new accel parts and had problems with timing errors, I have been a ford tech for over twenty years, back when ford used distributor mounted TFI modules they recommended coating the tip of the rotor with dielectric grease, I coated the rotor and the timing errors were gone , that cap and rotor have been on the car for two years with no problems, the only time I see any timing errors are 2 or 3 on start up
also I used to run a gm map sensor, then switched to a AEM 3.5 bar the difference was amazing, much better drivability, especially at low speeds in traffic, it's a better quality sensor
I'm planning on switching to a set of gm coils at some point, I don't know if I'm going to use the EPM or go with crank trigger, I already have the 12 tooth trigger wheel, explorer cam sensor/synchronizer and crank sensor, Not sure where to mount the coils, I don't think there is enough room on the drivers side valve cover due to the intake, I just wish the AEM would produce a SAW signal so I could use the ford EDIS system
also I used to run a gm map sensor, then switched to a AEM 3.5 bar the difference was amazing, much better drivability, especially at low speeds in traffic, it's a better quality sensor
I'm planning on switching to a set of gm coils at some point, I don't know if I'm going to use the EPM or go with crank trigger, I already have the 12 tooth trigger wheel, explorer cam sensor/synchronizer and crank sensor, Not sure where to mount the coils, I don't think there is enough room on the drivers side valve cover due to the intake, I just wish the AEM would produce a SAW signal so I could use the ford EDIS system