What should you time your 1972 Datsun 510?

To time your 1972 Datsun 510, you should set the ignition timing to around 10 to 12 degrees BTDC (before top dead center) at idle, with the engine warmed up. Use a timing light to check the timing marks on the harmonic balancer and the timing cover. Ensure the vacuum advance is disconnected and plugged during this process for an accurate reading. Always refer to the specific service manual for any variations based on your engine configuration.