the previous owner (not very well liked on these boards) had the dual cam swapped in, and somehow got it to run (barely) with the 1990 ECU and wiring harness. needs the alternator finished putting on.
other than that theres not really anything wrong with the car really. minus the rails. Its been sitting for a long time, it starts tho! it’ll need brakes and such.
okay to elaborate on that “and such” it’ll need brakes, probably bushings as its been sitting for about a year. fluid changes, the frame rails are shown in the picture.
The rear subframe will probably have surface rust. Tires will need to be changed.