speedracer2001: you'll have better luck if I move this to the
Windsor Power Forum.
I'd check the condition of your plugs. They'll be able to tell you what's going on more than anything. Also, check the color of the spark by removing a plug wire, connecting a spare plug to it, and lay it somewhere you can see easily and that can act as a ground (plug won't fire if it's not grounded). Crank the engine over and see what color the spark is. Anything other than a white to blue spark is bad, usually indicative of a bad coil. I suggest starting with the ignition system because it's the easiest and quickest system to diagnose. Good luck.
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Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch