Rough running and stalling when pressing throttle

[cumminsbear71]

I have done everything that I can think of that Rawze taught me to do.
No codes, engine runs rough, dies under load, stalls at times when pressing throttle.
What I've done
Checked/replaced exhaust pressure sensor and s tube
New MAP sensor
New cam and crank position sensors
New fuel pump and actuator (it was time)
Clean filters
Leak down test pass
Cylinder cut out test was fine
New throttle pedal just for good measure
Demandated so no delta p? Right?
Fuel pressure passed test
New barometric pressure sensor

I'm at my wits end. I'm sure it's something stupid that I forgot about but just can't think of it.
Help? I'm really stumped.