Okay let's rule out bad gas... no biggy on 93 plus additives.
TPS Sensor is on the TBI housing where fuel injectors - google GM TPS and look at images. Do the same for MAP.
If your not familiar with these components you could be chasing a lot of things down and spending $$$ for nothing.
If your not mechanically inclined get reading...
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....