WHEN AT STOP ACERLARATE PADAL ALL THE WAY DOWN AN STARTS TO BOG OUT FELLS LIKE NOT GETING FUEL BUT REPLACED FUEL PUMP AND SPARK PLUGS AND WIRES DIS CAP ROTOR AND CHANGE O2 SENSORS ALL 4 AND JUST GOT NEW TRANS REPLACED TP SENSOR AND STILL DOES THE SAME.

did you replace fuel pressure regulator ?

Depending on your vehicle, if it has a distributor. You may have to change it out completely. It happened to me. Changed everything and that was the last item. Worked after that.

the symptoms of a fuel problem are1 no fuel to the engine 2 low pressure ot the engine. What you describe indicates thet the pressure regulator in the fuel manifold is not holding sufficient pressure to run the motor. Best to habe the pressure checked of both units befor spending dollars on what not be faulty

Could be the EGR valve or the idle adjust valve. Check Engine light on? Any codes?

your truck is running too rich with fuel if you have a carburator have it check

Sounds like a computer or Emissions control issue. Any codes?

Could be your transmission.

Could be several possibilities none of which I may be able to eliminate:
1. Tune-up!  You are not getting enough spark or Fuel!  Plug-wires may be cross-firing or bad ground from body to the engine - run a new ground wire to engine from battery or body-ground.
2. Replace fuel filter or do fuel pressure test to determine if f-pump is weak or lodged with corrosion or dirt particles.
3. replace plugs and wires and clean coil-pack ignition module (where plug wires originate from) use a brake-cleaner or throttle-body cleaner but be sure fumes are evaporated and dry before starting or spark could cause explosion from fumes. Oil on module could cause spark to jump.  Do not run plug wires along each other or will jump spark, wires must be crossed once or twice for prevention of this.\
4. check all vacuum lines around engine - a cracked vacuum line can cause a lot of problems.
5. injectors may be dirty or bad - easier to replace complete intake from scrap-yard then to pay $100.00 for new injectors each!
6. Coil-pack on ignition module could be cracked and may need to be replaced.
These are only possibilities of course with the little info you provided.
Hope this helps.

Looks like you've covered the basics, make sure the firing order is correct with your spark plug wire replacement. Hope this diagram helps.

gas pump or pressure reg is failing-chec wiring to pump for cuts n corrosion