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Are your typical symptoms that it will die, and then you need to sit and wait until it cools down before you can start it again? And if you test it during this time there is no spark? I am more inclined to think that your crank speed sensor (hall sender in the distributor) is actually at fault here.
Is your check engine light on when driving?
OK. I would start off removing the cap from the distributor, check the inside of the cap for any arcing marks, and make sure the spring-loaded center contact is in place inside there. Check the rotor for cracking, arcing marks, or a degredation of the arc surface on the tip of the rotor.
You may also need to check to see when your fuel filter was last replaced, or even remove the pump and check for particles inside the fuel tank. If the pickup screen on the fuel pump gets blocked by debris, the engine will die- but then the debris will fall off the screen and drift away, only to collect again once the pump starts running.