Just replaced head gaskets.installed stud kit,e g r elimitnator kit.new oil cooler.sent cyl. Heads to machine shop.had 7 new intake valves and 8 new guides installed.. also installed new flash tuner S C T . It allowed me to turn off check engine light for e g r delete kit.. and set up on performance level.black smoke bad when turbo kick in. installed reman turbo.now black smoke until turbo kicks in. help