If your going to just change the coil.I'd just stay with the factory Plugs but open the gap a little more then stock. Unless your having some other issues There is really no need to change the heat range of the plugs. It seems to me your just after a better/ hotter spark. Changing the heat range of the plugs has more of a affect In a hp application. Not so much in stock that i have seen but it has been so long that I have played with anything stock LOL
but hope this helps }[oooooo]
Ps if I'm wrong on this Please by all means someone else step in.
God doesn't like ugly.
