What do you think is the problem I am having when the car warms up then it starts to surge and hesitate like it's not getting any fuel. Changed Fuel Filter abd Distributor Cap and Rotor, and Checked Fuel Injectors.

Would it be the Fuel Pump, MAF, Oxygen Sensor, MSD 6A Ignition Control Box/Unit or Catalytic Converters???

did you check the injectors when they were cold and hot? If you have a bad coil in one of the injectors,,which is common for the stock multecs, it will shut down after it gets hot. So you might want to check them both ways

Sure will check all the coils in the injectors. Thanks!

Checked them when they were cold and hot. No problems. The coil is fine.