Okay so I got the 2.8 fuel injected pretty much the same motor you have it will run for a little bit and then die I got the intake off I think my fuel pressure regulator is clogged my car sat for 15 years in the woods
This one sat 14 years inside & I had to replace the whole fuel system including the tank... 15 years ..just assume the whole fuel system is crap the tanks get rust from sitting and clogs everything.. start with the filter and see what goodies come out of it. that should give you a idea