Well the 90 and up had FI, so you don't have to fight with a possibly messed up carb, (When the carbs work right they work well but they are like a poor mans FI, Computer controlled and easy to screw up..)
The post 88.5's are supposed to have a little better ride, (Spring change) Make sure you have good
compression (175psi-199 Ideal) and watch for oil leaks, Commen areas are the fuel pump vent, oil pan,
distributer o-ring and front main seal. (Easy and cheap to fix.) But It will give you some bargening leverage...
87' Zook Spoa,M/L 33's, 4.16 tcase,4.62 gears Camo,Header,2"exhuast, Cam.
Lockers, 8klb winch, -Wildweasel2 NE4WI- club http://www.cs.umass.edu/~glenn/personal.html