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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
I have a bbk fpr sitting here and am wondering if I should use it. Iv heard you dont need them unless you have bigger injectors and major mods? Any truth to that.
you ALWAYS need a regulator. Your stock rails have one (hidden under the intake) but it's non adjustable. I think it's mandatory to put an adjustable regulator along with a fuel pressure gauge (Thats how to test your pressure).