[Phatboy]

If you're running the stock map from the PCIII website, then chances are you will be running a little rich. It shouldn't hurt to lean it out some, especially if your mileage drops. I think they make their maps rich because that only causes carbon deposits, while running lean could cause valve damage- so they err on the side of safey IMHO. Pour some Seafoam in the gas every third tank and that will pretty much take care of any carbon deposits.

The only was to be sure is to put it on a dyno and have them check the f/a. The tuning would pay for itself if you look at the 111 fillups it will take you to get to Alaska.

I lived in AK for nine years btw. Go up there and see the mountains and the wildlife. Go see a glacier and go catch some salmon or halibut. Then- get the heck out of dodge cuz winter is coming =P