Ok i am having a little trouble. Truck was running good and i went to pass a car and when i got around it the truck starting running like crap. Popping and smokes white. So i figured it slipped timing. Got home checked timing twice and it was good. Fuel pressure is good. Just feels like its got a bad miss. Could i have an injector going out ? I am running 5 by 22 s. Or did i stick a plunger? Thanks for the help