you're getting yourself into a lot more work then you're prepared for with what you have.
1. if you want to do a v8 swap in a mustang, you'll need a v8 donor car, or you're gonna have a severe basket case on your hands.
2. that's a NON ho motor, and for the work you're gonna do, a complete waste of time to put a motor that has 50 horses less into a mustang...may as well slap a turbo from a turbocoupe onto that 2.3, you'd be better off.
3. you're gonna need the harness from a v8 93 only mustang to make this work, the bronco harness won't work
4. the bronco is speed density as mentioned.....the 93 v8 mustang harness is setup for mass air, so nothing from the bronco would work.
5. as mentioned, I believe even the intake is different, as is the throttle body.
6. you're going to need all kinds of other stuff from a v8 mustang such as the proper trans, proper v8 spindles and brakes for the front, proper shocks/struts, the mustang 8.8 rear end, etc etc etc.
not trying to discourage you, but this venture will likely result in you having two useless cars.