Help!

I've got a 1990 Eagle Talon w/ the 2.0 non-turbo front-wheel drive automatic. I got it from a friend who had the timing belt go on him, chewing up pistons and ruining the head. The car sat in a fairly moist building for about 7 years before he finally gave it to me. I rebuilt the engine and head and reinstalled it and it ran fine for about a thousand miles. Now it acts like its running on 2 cylinders... No power, idles very rough. I pulled the spark plugs and 2 & 3 appear to be runnning lean while 1 & 4 are running rich. I've run around in circles driving myself crazy but I can't figure out whats causing it. Any help or direction would be GREATLY appreciated. Timing is correct I've checked that a couple times. Thats all I can really think of for now. Thanks.

Sizzlin;
Sounds like your coil pack to me. It's actually two separate coils, one for cylinders 1 and 4 and the other for cylinders 2 and 3. They're pretty pricey to buy new, but you can pick one up at a bone yard for $10-20.

Mark