Where to Hook Up Vacuum Advance: Expert Tips and Tricks
The vacuum advance for the distributor of a car engine should be connected to a full intake manifold vacuum port. This port is located on the carburetor or throttle body and provides a steady source of vacuum that is not affected by changes in engine load or throttle position. The vacuum advance helps improve engine performance and fuel efficiency by adjusting the timing of the spark plug firing based on the engine’s vacuum signals.