Is a 90 ford bronco 2 4x4 carburatored?

Most 1990 Ford Bronco IIs (the smaller Bronco, not to be confused with the full-size Bronco) used a fuel-injected engine, not a carburetor. However, there's a small chance a carburetor might be found on a very specific, possibly modified, vehicle. To be certain, you'd need to check the vehicle's paperwork or look under the hood.