Ok long story short my truck is driving me crazy. When i floor it from a stop it will accelerate but then stall at about 3 grand. Then it will pick back up and shift but sometimes it stalls out twice. Feels like it runs out of fuel or something. I have already replace 2 fuel pumps, fuel filter, plugs, distributer cap, and rotor, And also rebuilt throttle body and fuel pressure regulator and none of this fixed it. Any help would be great guys. Thanks. There are no check engine lights on.