Don't rely solely on a general answer. The best way to find #1 is to:
1. Consult your Bronco II's repair manual: This will show you a diagram of the distributor cap with the correct firing order for your specific year and engine.
2. Look for markings on the distributor cap itself: Some caps have the cylinder numbers clearly marked on them.
3. Trace the wires: Follow the spark plug wire from cylinder #1 (located on the passenger side, front of the engine) to see where it connects on the distributor cap.
Using a repair manual is the safest and most accurate way to avoid misfiring or damaging your engine.
