Help! Little big of white smoke coming from exhaust?

[enorwood22]

I just bought a 2010 Silverado LTZ 4x4 last Thursday and a few days ago it started leaking oil, and now I noticed it smokes from the engine bay on startup. It's not a lot of smoke, but it smokes on startup and smells like something is burning and then a few seconds later it'll stop. I opened up my engine bay and it looks like it is coming from the passenger side exhaust manifold, maybe a worn exhaust gasket? I'm not sure. It is white smoke, and there is a little bit of white smoke coming from the exhaust as well. It's hardly noticeable from the exhaust, but when looking in the engine bay you can clearly see it. If anyone has any ideas what this could be please help me out.  

[mn camper guy]

Replacing the valve cover fixed my startup smoke and oil consumption issues.
2010 5.3l.

Google : Bulletin 10-06-01-008M

I relaced cover and plugs at 100k. Oil consumption less than a pint now down from 1+qts per 3000 mi. #7 plug was oil fouled. Now at 116k on the truck.

Note: i have had afm off since 20k miles via diablosport.

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