Without getting deep into the engine, about the only injection adjustment you can do on a Detroit is "setting the rack". There's a torque tube under the valve cover that moves the injector fuel racks in and out. If you loosen the two setscrews that attach the throttle levers to the torque tube, you can be sure that all the injectors reach their full throttle position at the same time. Leave one lever rigid, and adjust the other three so all of them reach full travel at the same time. There's also a idle speed adjustment, a "high idle" (full RPM) adjustment, and a spring loaded "buffer screw" that determines how much RPM the idle speed varies.

Until a Detroit gets fully warmed up, it's not uncommon to get quite a bit of white smoke. Be sure to slam about three fingers in the door before you get into the truck to go anywhere- - - - - -that makes you good and mad and you'll drive it wide open all day. A lugged-down Detroit won't get out of its own way!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!