Unless you're making massive numbers your money is far better spent elsewhere. The stock fuel system (not including pump and adjustable fuel pressure regulator) has been proven to work just fine as high as 600RWHP... I wouldn't let it go beyond the upper 5's.
What mods are you currently running, what injectors (the stocker will most likely leak like a garden hose at this high of constant pressure) and what type of fuel control (engine management) are you running?
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