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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 1991 foxbody 5.0 and today i was driving and punched the throttle hard enough to lift the front end a good 10 inches. i can't tell yet but it feels like something important is about to break. now as i normally accelerate there is a loss of about 500 rpm, and a vibration that feels like its straining the engine. i know it could be a variety of problems but im just looking for some ideas or places to start.