Re: I always run two lines

If the rotor cavity is segmented for 2 inlets (like a multi-stage dry sump), you've fine - but you have to run both or you're down 50% on volume.
If it's a common chamber to the rotor, you cannot run 2 lines unless you know that neither pickup will be exposed.
Why?
Because if only one pickup is submerged, the rotor has a choice to draw from either:
1. the thick, gooey, viscous oil from the wet pickup, or
2. the nice clean air from the exposed pick-up.

Guess what happens?