91 caprice 350 9ci, hesitates and stall on accelaration after reaching normal operating temperature. Anyone have any idea what this might be. the car has a fresh tune up encluding fuel filter, but not a cap and rotor could that be it?

Just for grins, check the cap and rotor for any signs of moisture or carbon streaking. Moisture in a distributor can exhibit problems once the engine has warmed and the moisture is vaporized. As soon as it cools and the moisture condenses, it can start and run normally until it warms again.

Moisture in a distributor can exhibit problems once the engine has warmed and the moisture is vaporized.

Heh, it can also lead to road rage on a Christmas eve - that's another story. :evillol:

silicon, lets hear the story!