Well I had a 88 s10 with a 2.8 it was a TBI type fuel system so thats what I figure you have too.
If you dont have any experience with fuel injection youll have a lot less trouble putting it back to stock configuration, at least then you can follow the wiring diagram.
If your trying to convert over to central sequential injection I think your going to get in over your head because now your going to be following two wiring diagrams and melding them together. Plus most of the sensors and such dont have the same type connectors.
You can get a good wiring diagram here.