If you want modded wires, PRJ are the way to go.
I just put mine in and if you didnt gap them I almost guarantee you thats the problem, I gapped all mine and they were no where near .55 when i got them they where all pre gapped at around .25I'm pretty sure it started right after. Cause I instaled everything at once. About how much do the wires cost and where should I purches them from?