serious 60 rough idle when warm

[wellrun]

got a 1998 12.7 ddec4 that had jake and performance problems....removed did valve cover and saw damage springs 0n#1and broken snapring and damage washer on #2....#1and #3 solenoids were also leaking oil when manually activated ............also ran an overhead didnt do injectors...
engine sounds great after start and after it got warmed up when i was rev jaking it began idling rough and act as if there a bad injector or compression..backfires a little too..sounds af if the jakes were still on.
question....can bad solenoid cause oil to leak pass and activate the jake?