Originally Posted by kingrukus
Unfortunately I do not have one of those, but I do have a diablosport predator tuner. Should I just plunk on the canned 91 tune from it for now? Would that be safe with my orange top 19lb injectors? I have a 2000 GT 5-speed.
One of those preset tunes they put in the handhelds will do wonders to any vehicle,if the tune is for your vehicle. Don't expect it to feel like you have a new engine under the hood. The stock tune from Ford is setup to get you around as cheaply as possible. A custom tune (like the presets) will awaken the engine, although most do require a higher grade of fuel.
Some handheld will let you make adjustments as you add to your engine; CAI, bigger injectors, underdrive pulleys.