well if she runs good, no problems what so ever and you're not looking to build the power just yet, follow denny's instructions, they're cheap and it will keep the motor nice and happy, add a full tuneup to it as well if you dont know how old everything is, just standard autolite plugs, wires, points, condensor, cap, rotor, fuel filter, oil change(i wouldn't run synthetic on it just because of the age of the gaskets they might not take the synthetic too well), new coolant and such.... check out the brakes as well, those old galaxies dont stop too well when the brakes are done