I have on my Escort, 023 in tank pump - to oe fuel filter - to undercar fuel pot - from pot -10 to Deatschwerks 350 pump/checkvalve, - fuel filter -6 - to rail - from rail to Turbosmart FPR - from there back to fuel pot - then I have an over flow from pot back to original tank -4, all other lines are -6 and i'll be around 600bhp