* Internal Regulator: Most 1978 Novas had internally regulated alternators. This means the voltage regulator is built into the alternator, and you won't find a separate component.
* External Regulator (Less Common): Some models, especially those with older or aftermarket alternators, might have an external voltage regulator. If you're looking for an external regulator, it's usually mounted on the firewall or near the battery, attached to the wiring harness.
To confirm the location:
1. Look for the alternator: It's usually located on the passenger side of the engine, near the front.
2. Check the alternator's case: If you see a small rectangular box with wires connected to it, that's likely the voltage regulator.
3. Trace the wiring: If you can't find a box on the alternator, follow the alternator's wiring harness. It should lead to a separate voltage regulator.
Remember:
* It's best to consult your 1978 Nova's repair manual for specific information on the location and type of voltage regulator for your particular model.
* If you're unsure about any electrical work, it's always a good idea to have a qualified mechanic do the work.
Let me know if you have any other questions.
