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Yeah, I have 2 workshop manuals here for VT to VZ V6/V8, a gregorys and a max ellery, these both show the fuel pressure regulator on the gen111 vehicles is connected to the fuel lines under the engine cover, theyve even got pictures showing it, but they dont mention anthing about the later V8's. It does say that the alloytech V6 has the pressure regulator located in the tank. Youd think at least one of these manuals would have the updated info about the later V8's having a non return fuel system..It says that in my Gregory's manual also, but I don't think it's rite. I just read something that says the fuel system is return less that would mean the regulator is in the tank yeah? There's something that looks like a fpr between the fuel rails but it isn't rite? That doesn't make any sence?