An AFR of 11.5 is great for a turbo or blown car at WOT. For normal driving though you still want it around 14.6. The stock setup, on the Foxes anyway, is a bit rich from the factory even for a stock car. That's what's taking me so long tdialing my car in. I've got it pretty good at normal driving now and am a bit rich for the most part at WOT...but I'm lean at idle. Just have to keep wcrewing with all the parameters with my Tweecer. I'll whoop it yet.