what could be causing this? I got the head off my turbo ls inspected for everything and the head is perfectly ok. There is a bunch of oil in the spark plugs, lots of blowby with milky white sh*t coming out. Tons of white smoke out the exhaust and will not boost,

 

I had a leak from one of the hoses for the IAC thing on the back of my manifold... Finally found that damn drip after a year!

 

you head gasket is blown,

did your torque it down correctly.. the right order and the right ft/lbs

check both the block and the head for warpage and slap a new gasket on there.

should be good to go..