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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.
When my 6a box is hooked up theres like a backfire or maybe some pre-ignition or some type of issue but only sometimes. is it a timing issue, or soemthing else?
I put mine in 6 years ago, but if I remember right, the Ford 5.0 is an easy hookup. You trigger the MSD from the coil harness. I never touched the TFI module.