How to Identify Return or Returnless Fuel System

[x ReAcT x]

As the title says im trying to figure out wether i have a return or returnless setup on my engine. I just bought the new 5.3 E-Rod system that GM just came out with. http://paceperformance.com/i-7542625...nsmission.html Im pretty new to the whole LS engine craze so I figured this would be a pretty simple setup(nearly turn key). Im trying to see how to route my fuel lines. Ive tried searching and ive figured I would use a 87 C10 Fuel sender. If yall have any suggestions or diagrams that layout what needs to connect to what I would really appreciate it. Im a pretty mechanically inclinded individual so where to route them wont be an issue. Just need to figure out what connects to what. Mine will be a little different than ones on the site because i have this vapor canister. Im making a tutorial off of this whole setup so that way others can learn off it. I take tons of pictures as you can see from the axle rebuild in my sig.

[clinebarger]

Returnless. The E-rod engines come with intructions. Ive posted several times on what to do with square body fuel systems.