Ok guys just got done doing head gaskets, egr delete, studs, exhaust, injectors from warren, 62/70 turbo, sct tunes from innovative. got the truck all put together first startup lots of white smoke. Truck has lots of power just lots of smoke. Pulled the codes only one came up with relevant was p0263. So I traded the number One injector and switched it with the one beside it. Same issue same code. Pulled the injector plug off while truck running smoke stoped. Pulled the injector out now, orings are fine there are not two bronze washers just the one. The injector cup looks fine to the naked eye. The heads were deked and pressure tested. Any ideas? I'm lost.