My truck started smoking when i would come to a complete stop and take off the egr is deleted has arp headstuds and running an sct tuner.

 

if you think head gaskets are good it could be a weak injector or a bad turbo oil seal. my truck was doing the same thing ford dealer could not figure it out they replaced fuel pump and all 8 injectors and still did it alreasy had egr delete so i knew it was not that pulled turbo off to take a look and could see verry verry verry little oil in it rebuilt turbo with new seals and fixed it been good for 2 years now.

 

What color is the smoke? It would help if you can get out and smell it and see what it smells like. Does it smell sweeter like coolant or a little rough and burn the eyes a bit like fuel?