- Dec 5, 2006
- 153
- 0
- 17
Going to be changing out my plugs and want to try out what ngk has to offer, currently running h/c/i set up and the heads are gt40X heads , right now iv got autolite 2924's in the car .
What part # for the ngk am i looking for with these heads and will they be 1 step colder than a stock plug. Any help is appreciated .
What part # for the ngk am i looking for with these heads and will they be 1 step colder than a stock plug. Any help is appreciated .