12.7 white smoke at start up

I have a 12.7 that was rebuilt in July, ran fine for the months and out of nowhere the truck started smoking white at start up and smelled like fuel We changed the injectors and problem persisted. We also removed the head and found all the new liners scratched. Replaced the liners and pistons and reassembled and problem continued. The truck then didn’t want to run correctly, it felt like it was starving top end. Fuel pressure would drop to 35 psi. Found 1 of the Jake’s sticking Removed all there Jake’s and truck runs good again, but white smoke/fuel smell continues at start up.

we tried another set of injectors
Another ECM
2 different fuel pumps
Changed the injector wiring harness
Replaced fuel line from pump to head
Ran a line straight from the tank to the pump
Check valve replace

I am stumped

 

The engine is a 1993 series 60 12.7 Detroit . It’s sitting in a 09 Casacadia. The smoking problem started in December, at that time it looked like a freight train spitting out white smoke at start up and would go away. Now after the rebuild it smokes white at start up and heavy fuel smell, but more of a light fog … the fuel smell lingers

 

OK let me try that. Also I just went outside and the strong white smoke is back. Wish I could post a video for you to see

 

DDeC 4