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i cannot say if they do or not, i can say that most statements i see on the ford forums are stick with oem old school copper plugs. i have wondered about the no foul plugs used in two stroke boat motors. i cannot find the article i read but i do remember reading somewhere that the ign a coils were developed for a marine application again if i remember right lol enemy has closed his gap to .016 i think, and i have set mine at .020 and turned my tables down to 25 psi and honestly 25 psi is plenty but 30 to 35 is just more fun i would pre fer to run maintain .020 or get back to .024 gap which is why i have been looking at the ign 1a coils. i could be wrong but the smaller the gap the colder the spark.
what would be the advantage to the cut back side electrode vs a v fire/split shot or the double electrode style?