1990 Dodge Dakota runs bad as you first step on gas pedeal

My dodge pick-up runs really bad when you depress the gas and then it gets better until you come to a stop then it starts all over again I replaced the usuall stuff(fuel filter plugs wires coil rotor wires etc)?

Can you describe the symptoms better than “runs really bad”?

Sorry, It’s real rough have to floor it to get to go and then it runs good until you come to a stop and then you have to keep one foot on the gas the other on the break, no back-fire except once in a great while through the FI body (carbartor looking), I could be missing some thing when I say it runs good because I don’t drive it very far in the current condition. Thank for your help… SC