Apparently I've had the settings in PL wrong the whole time I've had the wbo2....went back and looked @ some logs from my other car and the narrow was 770 but afr was 11.65....had no knock, sohow do you know when to quit?
Sent from my DROID2
That's where I'd stop. At the dyno with race gas, I'll run it lean @ 11.5 AFR and man does it pull with no knock. Don't push your luck any further though. Most recommend 11.0 or high 10s as it's safer if/when something goes wrong.