I got my 84 E350 in 1995. It came with a 460/C6. Over the next decade I swapped the C6 for an E4OD and the D70 rear for a D70 dually. In 2005 I got an 89 E350 for it's IDI. A few years ago I added a remote turbo. At that time I also had a 2001 E350 PSD. They are both 7.3, the PSD turbo seems to work well, so I had a shop build me one like the PSD. The most boost I ever saw was ten pounds. But five pounds put me up one gear on hills and the black soot was almost gone. Prior to adding the turbo I removed the fuel filter from the engine and put a Racor on the frame. I had bought a turbo-calibrated IP in anticipation of adding a turbo, was carrying it, and swapped it in on the road prior to adding the turbo. I replaced the injectors about a year ago. And all was well. Recently the 89 IDI produced a large cloud of white smoke when starting cold. I have just replaced the 89 IDI with a rebuilt 93 turbo IDI. I set the IP at the center of the slots. It produced enough white smoke to make it unusable. I advanced the IP what little I could without reforming the lines. Now, a few seconds after starting it idles very smooth. After it warms a bit it starts instantly, and the white smoke is hardly noticeable. But run it up to maybe 2K and it billows white smoke, and runs a bit rough. And that is where it stands. I have driven it only enough to get it on the lift, and that felt normal. Suggestions?