I have an '85 XLT 4x4 with a 2.8 Liter. The truck sat for 11 years and I finally got running, but here's the kicker...it has an '83 engine, someone took the fuel injection off (it still has the reservoir) and put a Motorcraft carb on it. It runs and drives, but I'm having serious issues with the idle. It stalls after warmup and at stoplights. It starts fine, but won't stay started for long. I've done a full tuneup, rebuilt the carb, replaced the ECM, etc, but to no avail. My biggest issue is that I don't know exactly what I have. I love the truck and, eventually, want to do a complete rebuild, but for now I need to get it running right. Any help is GREATLY appreciated!