Anyone know if these are a decent plug to run N/A. They are a race plug with a short ground strap. The heat range is a medium range according to their chart however the plug is gapped around a .020. I'm having problems with my TR6 plugs N/A so I'm trying to find a better plug that won't foul out or burn out on WOT runs. For everyday DD driving the TR6 plugs work great but for WOT runs at the track I tend to get some stutering and poping sometimes with those plugs at idle after a hard WOT run.

I haven't pulled the plugs yet while at the track by shutting the car off just after I pass the traps then coast into a place to check each plug but that is next on the things to do list.

The owner of a nearby track said I could come out any time and run for tuning purposes. No VHT on those days though but I should be able to get much needed tuning time in if I spent a whole day out there with the wideband and the laptop(tunercat/datamaster) and many bruised knuckles reading spark plugs.