Bad miss on 1990 Chevrolet Celebrity

When i start my car it starts just fine. But if i drive it for about ten miles and park it and let it sit for about 1 hour and i go to start it it misses real bad and when i put it in gear it tries to die.But if i go a short distance and let it sit for a shorter amount of time it starts just fine.

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1 answer
This is the same symptom I would see on other vehicles with a leaking fuel injector. Have the fuel pressure checked, especially after the engine is warmed up and shut off, this is called the rest pressure, or residual pressure.