I have 04 Cummins mud truck running edge juice w/attitude and 12v H1C turbo and flipped manifold to run hood stack. Well truck starts right up but when first started it'll idle few seconds then have a surge (idle down then revs back up am idles). Truck also has white maybe grayish smoke. Changed fuel filter and cleaned filter housing along with seafoam tank and rebuilt turbo as it was leaking oil or I thought was oil along with shooting out exhuast all over hood/roof which some where saying wss actualy fuel not oil coming out which it did seem to have a weird texture/feel to it. Well once rebuilt turbo and seafoam truck seemed better n slight less grayish/white smoke. Well we couldn't find option to do contribution test on buddys who owns eagle auto and performamce snap on code reader. So instead disabled injectors individualy and kinda ish seemed cylinder 2&4 didmt make much difference but was hard to tell well in process of doing that engine seemed to of and is now making a weird noise and not sure what it could be alonh with truck has like a miss or something when reved up and driving while blowing white/grayish smoke. I mean a miss as it has a pop when idling not really a pop but can tell it has a miss. But still seems idle decent and good power still. So very unsure what's going on but going change oil tommrowto see if anything in oil pan plus I'm sure been while since changed. So if anybody has idea's or input be greatly appreciated!