Burning oil

[Pro Star Cummins]

Gentlemen and I use this term very lightly ( excusing Rawze ofcourse) .
We replaced turbo and actuator on ISX 871 about 2 weeks ago
With new from cummins dealer. We installed per watching Great video
Rawze provided. Our truck is now throwing smoke when first starting
Out,but can't see anything going down the road. We need to add oil
To top off stick after trip. Not overfilling crankcase.
Did we get bad turbo or did I install wrong, or is something not
Seating properly in turbo. We have pyro and boost gauges per
Rawze video. Any help is appreciated.