Have low fuel pressure

Have changed fuel pressure sensors on fuel rail and on gas Tank .Have changed fuel pump .cranks after priming (turning key on and of 3 times ) and ideals if you press the accelerator like normally taking off it will die if you put it in gear and press the accelerator it will die if you slowly float the accelerator and park it will rev up all the way to 3500 RPMs but once you put it in here and mash the gas to go it stalls out. When you just crank it and let it sit there and Auto it autos for a while then it will all of a sudden start missing bogging down and die