How do you set the timing in a 1990 olds calais 2.3L quad 4?

To set the timing on a 1990 Olds Calais with a 2.3L Quad 4 engine, first ensure the engine is at TDC (top dead center) for cylinder one on the compression stroke. Then, locate the timing mark on the crankshaft pulley and the timing tab on the engine. Use a timing light to check the timing; if adjustments are needed, loosen the distributor hold-down bolt and rotate the distributor until the timing light indicates the desired timing mark. Finally, retighten the distributor bolt and recheck the timing to ensure it remains in the correct position.