When running fuel lines down the tunnel, what should the distance be between propshaft?

I am running 2 lines down the tunnel on a Luego Velocity, and im finding it difficult to position them in such a way so that they don't clash with anything.

Has anyone got some pics of fuel lines down the tunnel so I could get some idea of were they should go (top, bottom, etc.).

Dont have a pic but I ran mine down the right hand top rail. "P" clips rivited to the rail and they are miles away from the prop or anything else.

Spy answered on other section

http://www.locostbuilders.co.uk/viewthread.php?tid=12699

Stop confusing me it's late!