Just bought my kid his first car... 84 5.0 5 speed. Car sat for 9 years. Put a battery in it and it ran great. After it ran for a while it would not start. Alternator is putting out 14 volts at peak, replaced dura spark module, voltage reg... starter will satrt breifly but quits after a few ...like a dead battery but the bat. still shows 11.4 volts. Took the starter down and they said it was fine but dont know what they were testing. When car is running it starts to cut out under 1500 rpms....any ideas..any help would be appreciated greatly.