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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.
If you're going to be modding for a while, do what I did. Get a 255lph pump and an adjustable fuel pressure regulator. No sense in buying a 190 and having to buy another one later on, IMO. A 190 would work too though if you're going to stop after a mild build