I am getting ready to install my new engine and I am wondering a few things.

1. My nitrous lines are these small rubber hoses: are these ok or is it better with steel cables, and if i need steel cables how do I determine the size of the cable to use?

2. My turbo is oilcooled so i need to run oil into it from the engine but i am not sure where to hook the line up to on the block, because its a b20 vtec as I understand it there is one oil pusher thing on the back of the block but that needs to run up to the head? Is that correct?

Thanks.