http://www.performancechipsdirect.com/Chevy/K1500-PICKUP/ They say 4-7 mpg and up to 60hp gains.. but for 70 bucks it doesn't seem legit. . i'm just trying to beef up the motor some because it's getting old and add as much as possible to sell or trade for a z28.
thats my first thought as well . i have been looking into the hypertech chips as well. but there around 150