Originally Posted by leigh
Did you do a dyno run with meth off?
I wanted to run meth off but I left it to see the gains from my last session with new plugs and better conditions. Last session I had 70pct humidity and pulled 519 with bad plugs. Simple plug change and clean air makes a world of difference! Meth from my last session was only making 10whp more. It's more noticeable in the summer when its heatsoaking