Recently snagged a 1980 F350 Custom with a 400 in her as my next project. She sat for 2 years, but she's running...rough, but running. Glad to have found this forum.
Thanks folks. So here's what I've gotten done so far. She sat for 2 years with both tanks full of fuel. I replaced the rear tank, fuel lines, pick up, pump etc. Just finished a full tune up and adjusted the Holley carb. Big difference. Need to get at all the vacuum lines next. During my spare time I took the dash out, went through everything, sealed all the snap together ac/heater duct, painted the old dash and reinstalled.