On an autozone coil pack and moduleGood question. On paper the IGN1A coils are more powerful but in practice the car ran excellent with the wasted spark truck coil and runs excellent with the COP. She runs cleanly right on up to 6700rpm with either coil setup. No appreciable changes to fueling necessary.
Pushing the tune to more aggressive settings might reveal a difference where the IGN1A coils can light off a mixture that the truck coil might struggle with.
We have spun a 109 to 7200+ rpm
Burned e85 and over 50gph of methanol m1 with 2 pumps and 4 nozzles.
56lbs of boost!