i have been running about 70% UMO in the tank and i notice the boost is about 1PSI more than what it would have been with straight diesel. at 2300rpm and full throttle under load, i was almost 8.5lbs of boost. thats the most i ever had it. id turn my fuel up but i dont have a pyro and because of that, i would like it to stay "dummy proof". i pull a long hill going to my house at least once a day and its to the floor in 4th for a long ways between 2000 and 1500 then around 1400 ill downshift. even at 1400 ill have about 6psi of boost. turned up fuel would be nice, but i think i would like to clean the injectors first to see if that helps my power. running WMO i can see more smoke when after it cools down idling. when i see the smoke comming from the stack, its not consistant, like an injector may not be spraying right and having some incomplete combustion. that would give me power issues also even pulling the hill. so do you guys agree cleaning the injectors would be a good place to start before turning up the fuel? I allready adjusted the valves and filters are clean. are cleaning injectors something a normal mechanically inclined guy could do or do you need special tools? i would also have them pop tested after. i heard balancing injectors is a good tune up for a diesel.