How do you set timing on 1967 Chrysler 383 big block?

To set the timing on a 1967 Chrysler 383 big block, first ensure the engine is at top dead center (TDC) on the compression stroke for the number one cylinder. Next, use a timing light to check the current timing mark against the timing tab, which should be set around 5 to 7 degrees before top dead center (BTDC) for optimal performance. If adjustments are needed, loosen the distributor hold-down bolt and rotate the distributor slightly until the desired timing is achieved. Finally, tighten the distributor bolt and recheck the timing to ensure it remains accurate.