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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.
[sm=boohoo.gif] I just took my emissions test for my 90 5.0 and I failed horribly. My readings were 3.43 and the composite was 0.80 for my hydrocarbons.For carbon minoxide the composite was 15.0 my reading was 31.4 I need advice on what I should do. I'm also catless, so that might have a lot to do with it.