I had a custom map made for it, but I somehow lost it
. Went back to the dealer where I had it made, to get it put on my Sandisk, so I could upload it myself, but they somehow lost it in their database. For now, I've got one installed that I downloaded off of PowerCommander.com. With a little trial and error and the laptop, I think I've finally got it where it needs to be. Seems to be running better than with the custom map. I'll have it in, in a few weeks to have a look at the A/F curve. Thanks. By the way its a 2000 900ss