new hemi mpg in an Abody?

Want better mileage? play with the fuel trim. Specifically lean cruise. You almost never need or want 14.7:1 AFR.

Adjust the fuel trims for part throttle cruise to be closer to 16-16.5:1 AFR. Leave full rich enabled for WOT. You wont notice the difference between 14:7 and high 15's in closed loop. 16.8 is the max for my 2.0 breeze commuter car which i adjust via wideband programed output to skew the entire fuel map... also works well just not as slick.

That is my Stratus/breeze in the following thread.
http://www.srtforums.com/forums/f87/lean-cruise-mpg-testing-lc-1-a-440796/

5.7 w/MDS waiting to go in the cuda....