Re: Heavy white smoke
That definitely is unusual. I know any time you change injectors there will be a lot of fuel dumped into the cylinders, which will result in a lot of white smoke, but it doesn't usually last very long. I'd be monitoring the coolant levels, coolant pressure, and just see what happens. It may have been an o-ring not sealing 100% on an injector, allowing fuel to leak into cylinder during the exhaust stroke, and it sealed up a little bit more since it was first installed. (weirder things have happened) But really, without any evidence of it being coolant (hence keeping an eagle eye on the coolant level and pressure) I would be looking at the injectors or the seals.
2004 Excursion 6.0
New HPOP/HPO system o-rings; Updated standpipes and dummy plugs
EGR delete; Rebuilt oil cooler; CCV collection mod
VR Black Diamond head gaskets and ARP studs
Oil and coolant bypass filters; Shell EC-1 coolant
Rebuilt turbo; 250 amp alt; 6000 watts of brain scrambling
One giant 240 pound English Mastiff riding shotgun!