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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 Mustang just picked up about a month ago and I'm trying to get all the bugs worked out I have changed plugs cap and rotor, and set the timming at about 10. But the problem i have is that on acceleration the car will start to backfire at about 3500 rpm's it does in 1st and 2nd gear. If you could give me any suggestion that would be great.
I'd take it down a degree or two and see if it goes away. If it does then you are golden. If you still want the advance, I don't know what to tell you.