I'm actually looking for an ECU tuner for my 1995 Two door Tahoe, but I'm having trouble finding one for an engine with a design that old. The problem is that it's a throttle body fuel injected 5.7 liter V8 and most companies only make an ECU tuner for the 1996 Vortech 5.7 liter V8. I'm just trying to squeeze a little bit better gas mileage out of my engine and I'm also trying to shorten the automatic transmissions shift times. I was wondering if any one had any suggestions as to where I could find one? And is the Jet power programmer any good?