cfr865

Has anyone burnt there plugs using the Zex 100 shot. I know anything above the 100 you need to go with the colder plug, but I have heard some people say a 100 shot is safe others say you may burn the plugs.
Just would like to hear from actual expreince.

94tbird

stock plugs, yes. You need to change to the Autolite HT0's. they are 1 heat range colder and will solve all of your issues

Bullitt995

I posted a thread somewhere here with what your stock plugs will look like with a 100 shot.

cfr865

For those who are using the colder plug how bad does your daily driving performance suffer.