Well I don't actually have any spark issue yet because my engine is not on the Dyno as yet. So I'll keep what I got now and run them.
I didn't have a problem before either, I just wanted a larger spark available so if Splitfire don't do better than OE I don't need them.
I never had an issue before but running 30 psi on my 2.8 my show some sign of strain and was never a fan of blue coil packs on my engine, that bugs me I like my shit looking factory original.