Im glad you can see those pics clearly.that is the vacuum control valve in the heater hose line. Im surprised ford even had one of those in 71.What do you think the purpose of the looped line is?I've never seen one of those before.As far as starting the old girl up,I talked with a friend who has a shop and a couple of engines in various states of build.He said to do something with the gas tank,which im trying to do now,pull the spark plugs,squirt some miracle oil in the cylinders,change the oil&filter,and turn her over by hand a couple of times.He also suggested pulling the distributer and running the oil pump with a drill for about 10 minutes,then put the dizzy back in and starting her up,run her for 10 minutes then change the oil again,then take her for a ride .....Wahoo!!