Originally Posted by tabetha
I assume from your description you are talking cossie here ?
In which case you will most likely find around 0.6/0.7mm works best.
tabetha
some posts upper you sad:
"STOP right now, you will kill your engine on these plugs at that power.
Either as said or better still IK31 plugs 0.6mm gap.
PP8 only good for stage one or std, way way too hot for anything more."
where is the true?
This question is actual for me too...