1989 Ford Bronco

I did not see where you have checked/adjusted the timing. This is the first step towards driveability problems when possible.

Next try cleaning the mass air flow (maF) sensor on the throttle body.

These also have a common problem of the IAC Idle air control sticking/wearing out. You mentioned that most of the other sensors were replaced but not specifically so I am adding this just in case. Most commonly it just causing poor idling and stalling at idle problems. Tap the top of the sensor with a screwdriver handle and see if it smooths out. Replace as needed.

Please post any follup questions or if none of these pan out we have many more ideas.

Good luck.