Idles fine in park and neutral but in drive it stalls
 

Hello everyone, I'm new to the forums and I need help!!

I have a 2000 cummins 24v. All I have done to it is lift pump, edge juice with attitude, cold air and exhaust. When I put it into drive the truck just stalls out and jumps foward half a foot. I can't figure out what is going on with it. I replaced the map sensor and it's still doing it. I adjusted the apps and that didn't help. Can someone please help me.