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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.
well the exhaust does stop after the mufflers so thats probably it.
Well thats probably it, not to mention if you run a little rich when you punch it with the exhaust dumped like that, its going to smell like gas. mine does the same thing with my dumps.
check fuel presseuar and fuel injectors, when the injectors went bad on the other halves car it smelled of gas in the cabin... and for once it wasnt from me.