Used turbo questions ?
 

I won't be able to start my Miata in a month or two. I just purchased a used gt2560, and received it today. I'm wondering what to look for but I see holes in housing. Where the turbo fitting drain bolt goes.
https://cimg6.ibsrv.net/gimg/www.mia...954f828cb1.jpg

They're fine, it's just from where the bolt hole is drilled and tapped. Doesn't go into the body where the coolant or oil is.