I think I need my calibrations looked at

[PhqChevys]

Originally Posted by cleatus12r

I did change the A/F ratio under load just a little bit and I did make it leaner but it's still within stock boundaries. Bill had initially set it up pretty rich and I have found that with the last couple tunes that I fixed. I also made some changes to the ignition timing and it's more aggressive than Edge's by a long shot.

Enjoy!

Come to think of it, my exhaust tip does have a bit of black soot on it all the time...

Well, I'm defiantly happy with 18.2 MPG (standing on it) over my previous 14-15 MPG (highway). Maybe Bill had it richer due to the cold air intake that's on the truck...i couldn't tell ya. Just as long as your adjustments and leaning it up a bit is still safe and won't destroy my engine then, then I'm all for it! She runs like a champ!