Originally Posted by mousitsas
I am not aware what the safe AFR is.
For power Adv's like 13.0 + or -. For economy they like 14.0 + or -. Never go beyond 14.6. Thems lean territory.
One cool thing about Autotune with the LCD is you can make maps for each gear. It can get complicated but you can set 5th and 6th around 14.0 and lower gears around 13.0 when your scooting. You can also have one map and set it a little lean in the "cruise" range. this would be between 3 and 5K RPM and up to 20% throttle. Again, Tahoecr has this dialed from what I've seen. You can set everywhere else in the 13.2 range for power. From 0 to 5% throttle we have a little mapping trick that really smooths out the bottom end jerk.