I think what he meant by excessive was its seems odd that your fuel system isnt coping as well as others have, I dont think he was talking about cost.
Eg some people are getting enough fuel flowing to make around 360kw on e85 using a single 044 intank with standard fuel lines and you are having to add a surge tank, bigger lines and another fuel pump. Granted I dont think they are going to be putting out quite as much power as you when your tune is finished and they werent running as much boost, but still.