Haze at idle?

[James.eggo]

I’ve got a 2014 6.7 Cummins the has a pretty decent haze at idle. Truck is not stock. It has fass 150 to a duel 12mm cp3 with 150% over injectors. Has a s476 turbo. Is the haze a bad thing I need to worry about? Or is it normal for this type of fuel system