Considering it's age, I'd give it a tune up a little more thorough than that. Spark plug wires, cap and rotor, spark plugs, fuel filter, an intake "cleansing", such as the use or combination of a can of throttle body cleaner (I use Valvoline), B-12 ChemTool Total Fuel System Kit, or SeaFoam, and a good fuel system cleanser to pour in the tank.
Do this all at once when the car is ready for it's next oil change. I also recommend an engine flush. You can also take it a step further with the flush too. After you do the flush, refill oil with an inexpensive brand, minus one quart, and substitute it with a quart of ATF. Drive 50-100 miles then change the oil again to the usual brand.
DO NOT USE THE ATF TECHNIQUE ON TURBO CHARGED VEHICLES.
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