what kind of fuel mileage are you getting?

[farmtrucks]

5.3 (with hp tuners tune), 4l60e, 373 gear 265/70/15 tire -- got 24 mpg going to Nashville Goodguys about 1 month ago
On same trip my brother with a '66 truck with 4.8 (with hp tuner) 4l60e, 373 gear, 255/70/15 got 23mpg

[74project]

Drive everyday and it has not been tuned on a dyno or hand held and it runs rich but im getting around 16 to 19 mpg....the power is out of control..
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[mrhurt73]

Originally Posted by farmtrucks

5.3 (with hp tuners tune), 4l60e, 373 gear 265/70/15 tire -- got 24 mpg going to Nashville Goodguys about 1 month ago
On same trip my brother with a '66 truck with 4.8 (with hp tuner) 4l60e, 373 gear, 255/70/15 got 23mpg

wow, how about sharing that tune? sounds like that one works pretty good.