Tunerpro.net, This is a free download for OBD1 gm vehicles. Id say you could either try it yourself or have someone that knows how to tune help you along. I think you can also pay like 30 bucks and get the Real Time Tunerpro also.
-Custom Catback with Cherry Bomb Extreme,L33 with 799s, Pacesetter Headers, Electric Fan, SHIFT Technologies Shift Kit, Corvette Servo, 3 inch lift, 18" Factory Infiniti FX Wheels, 285/65/18 Nitto Trail Grapplers, 6000K HID fog lights, 8000K HID low beams, Wheatley Tuned.