Go here:
Member's 370Z Gallery - Nissan 370Z Forum
Click New Thread on top left of screen.
Put a snazzy title like Jobe's Geronimo Jump into the Void or Leeeeeeroy Jenkins!
Add content to body of the post such as pictures of the injectors you got, and pics of the engine removal. Basically it is your place to document your build and shenanigans with your ride.
Hit the Submit New Thread button
Revel in your technical prowess.
Done.