2. Rotate the engine until the timing mark is aligned with the pointer on the timing cover.
3. If you're using points, loosen the distributor hold-down bolt and turn the distributor until the points open.
4. If you're using a HEI distributor, loosen the distributor hold-down bolt and, with points closed, turn the distributor slightly counterclockwise until the spark advances about a sixteenth of an inch then tighten it back down
5. Tighten the distributor hold-down bolt
6. Start the engine and check the timing with a timing light. The timing light should flash when the timing mark is aligned with the pointer on the timing cover.
7. If the timing is off, loosen the distributor hold-down bolt and turn the distributor until the timing mark is aligned with the pointer on the timing cover when the timing light flashes.
8. Tighten the distributor hold-down bolt and recheck the timing.
