That fuel setup diagram is wrong. First off you dont use the stock fpr with the sfmu, you remove it. Secondly the reture line is not on the same side as the feed on the fuel rail. Here is a diagram I made a few months back when I was doing my fuel system. It also includes all part numbers and where to buy the parts.
http://www.dsmtuners.com/forums/atta...6&d=1111584972