chevythunderz28

Its been a long haul but nearly there.. I have a Zex inline booster fuel pump, now the workshop say it is pointless fitting this in line because it can only work with the in-tank stocker's pressure. While Zex say it works and is good for 600hp... I need to make sure I have enough pressure for the 42# injectors and nitrous shot. What to you guys recommend ? Has anyone similar builds this way ? Sponsors please reply aswell...All suggestions appreciated..