Fuel return line

[tyuhas at neurobio.arizona.edu]

I was flipping through some of my older magazines and I came across 
an article about a guy who put a Ford 5.0 EFI engine in his Mustang 
II.  What got me curious is the fact that he did not fabricate a 
typical fuel return line.  His return line, instead of going back to 
the tank, went to some fuel distribution block that also had ports 
for the fuel coming from the tank and going to the engine.  There 
weren't any pictures or more details as far as locations.

Anything inherently wrong with this?  Or is the return line to the 
tank the only way to go?

Thanks,

Terrill