gillbot

iTrader: (27)

I know you are supposed to decrease the plug gap when you go up in power but I can't seem to find the "rule of thumb" when it comes to this gap and heat range.

I've tried searching for it but can't find the usual posts or thread about it. Anyone care to chime in as to when you should decrease the gap and change the heat range of your plugs?

gillbot

iTrader: (27)

TTT, no feedback on this?

gillbot

iTrader: (27)

reduce gap .004 for every 50 HP added

Found it, still would like info on the heat range though.

tc3

iTrader: (2)

dont know how much this helps but here ya go

edit: and this

and one more

gillbot

iTrader: (27)

Excellent info, thanks!