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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.
because with a good tune youll get more out of it, and about the fuel injectors, ya you can stick with 19#'s but if your doing a h/c/i i really wouldnt, im running stock heads stock cam edelbrock performer rpm intake and i have a 70mm tb. however if you do decide to stick with 19#'s my maf is tuned for cai & 19# injectors so ill be selling it in jan-feb whenever i pull my motor to rebuild it, so whoever wants it ill work out a deal i just bought it 2 weeks ago.
1 thing i didnt mention, are the 19#'s u got now hi-flow or stock? if their the hi-flow ones then ull be fine, if their the stocks, id atleast go with hi-flow ones.