need help with fuel line diagrams

[superbeetle73]

Hi. i am tired of leakdown. so im replacing from both tanks to ip. does anybody have a diagram or any tech tips. i saw a 3 way brass fitting for return to fsv that somebody posted. any help is greatly appreciated.

 

[OLDBULL8]

Basically this is the circuit. The tee for return to tank (FSV) is drilled smaller to maintain a pressure (4-5 PSI) on the fuel supply to injectors.