What kinda horsepower and torque numbers are you getting from the 6.2 with a tuner?

 

Making power on a dyno is just half of the story of a complete solid calibration.
see here for rw gains over stock,
Got a 6.2L V8

 

I have been running the 93 perf/tow for about 1 week. In town the milage seemed to suffer - although I tend to be a little heavy footed...


I ran about 450 miles highway this weekend - about 2/3'rds good flat interstate w/ cruise set at about 73-74mph - I got 13.1 mpg showing on the lie-o-meter but generally my hand calculated shows about .5 mpg better than meter.

Watching the meter & looking at other's comments it appears that the 55 mph/ 65 mph/ 75mph speeds really do make a significant change in your mileage ( like one would expect)...