I've never heard of a fuel filter that's been "maintained." Fuel filters get replaced.

You mention having replaced the plugs and wires, but you don't mention what brand, and you don't mention air filter, distributor cap, rotor, and whether the coil wire was replaced, or if the coil wire is solid core, or carbon core.

When the car shuts down, perform diagnostics to determine what you've lost: Spark or Fuel

I'm not a fan of any aftermarket ignition system. Points and a Bosch coil are bulletrpoof. I do have a Pertronix Ignitor and their matching coil on one of my vintage cars, and it's been both a great upgrade and completely reliable for 25yrs. My Coupe is still bone stock.

Your situation sounds like a clogged fuel delivery system, or failed fuel tank vent system. Easy to confirm either.

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