I have a 97 Powerstroke, and yes I realize this isnt the obs section, but I have E-Fuel, spider with intercooler, Upgraded HPOP, 160/30 Injectors, and a KCTP38R Turbo. I figure it's more like a newer Powerstroke 7.3 than an obs Powerstroke 7.3. I'm getting a light haze of white then blue/gray...