Diesel Bombers - bluish white smoke

I have an 01 Dodge 2500 4x4 that i used to drag race when times weren't so tough. It hasn't been driven regularly for over a year. When I start it, it blows blue/ white smoke and sputters in park. When I get on it, it seems to clear up and only blows black. I have a FASS fuel system and changed one of the filters and am waiting for another to arrive. The filter I changed was ugly with a good amount of water and rust around the top of the filter. It actually runs worse, smokes more and hesitates more since I changed the filter. Reckon this may clear up after I change the other filter or have I damaged an injector or injector pump? I have a lot of aftermarket stuff. The truck has ran 7.7 in the 1/8 mile. Also has made 570 RWHP and 1250 TQ. The mechanic that did most of my work, well...we don't talk much these days so I need y'alls imput. thx