Ford 6.0L Power Stroke Diesel :: 2006 - While Leaving Form A Stop Blows White Smoke?

I have a 2006 f350 with 75k on it, has a mild sct towing tune, and 4' turbo abck dual exhaust. It recently started blowing whiteish smoke, so i did an EGR cooler and valve delete kit, and it stoppe dsmoking for a while.. coinsidence?

It has recently started again, at idle there is no smoke, and taking off slow from a stop, it doesnt ALWAYS smoke. but leaving a dead stop, if i get right into it, it billows whiteish smoke, and if im cruising, romp on it, let off it, then get on it again it will smoke.

Ive been told fuel pressure, injectors, turbo seal etc. when i had the down pipe off, no sticky black residue was present, so im counting out turbo seal (for now). I purchased the blue spring upgrade for fuel pressure, because i was told its not getting the right amount of fuel, once i get that ill throw it in and see if it fixes it.

whats yall's opinion? is it worth have it checked for a failed injector? as i said, no EGR in the truck, no loss of coolant either, oil is clean. It does seem a little sluggish at times off the line now as well.