Hey guys, it's been a long time since I posted on here. I'm completely stumped with this car. I bought my son a fairly clean 94 4.6 T-bird. It has 2 issues, at 2,000 to 2,500 rpms, the car will miss out and the voltage gauge is all over the place. We have cleaned all grounds, tuned the car up, and even tried out a known good alternator with absolutely no luck. Has anyone experienced this before? There are also no codes stored.