Look at this photo, directly under the bolt highlighted in green there is a blank in the turbo oil feed. Mine didn't have one as that was the feed used for the old turbos but it seems to be an oddball size between M8/M10. I will have to get one from Mike but im wondering what it's purpose is?

 

Second question is i've just mounted the turbos and the oil drain pipes don't line up with the tubes on the sump, they are sitting slightly lower. Is that normal? I've got MSP manifolds so im wondering if they have placed the turbos off, has anyone experienced this?

That blanking off plug you have there is blanking off the hole for the oil pressure sender unit.... is your sender unit relocated else where?