4" lift with 3.92's & 35's, great combo! MPG's tracked on Fuelly.
Around town is pretty consistent around 13.3 mpg. My "around town" includes VERY short trips in the morning to drop kids off, less than a mile round trip so I don't even shut the truck off when I take them in. When I head into the office and commute my MPG's go up significantly since she actually gets to cruise a bit.
All HWY is between 16-17 depending where I'm headed.
All in all, very happy with what I've got. It's lifted, looks just how I want, still hauls a$$ when I put the pedal down, and will return respectable MPG's if you show just a little restraint.