How do you change spark plugs on a datsun 280zx?

To change the spark plugs on a Datsun 280ZX, first ensure the engine is cool and disconnect the negative battery terminal. Remove the spark plug wires by gently twisting and pulling, then use a spark plug socket and ratchet to unscrew the old spark plugs. Insert the new plugs by hand to avoid cross-threading, then tighten them to the manufacturer's specifications. Reattach the spark plug wires in the correct order and reconnect the battery terminal.