crazy n.y... good luck on your "new" harley. Unfortunatly, the iron head "AMF" years for harley were not a favorable time frame for H-D. That being said, I had a 72' iron head, and if you got it running good, you had one monster of a scoot. I loved that bike to know end, mainly because it was my first Harley.
Here is probably one of the only pics of my bike when I bought it, in early 1984...
Ride the daylights outta that bike man......
Notice the right hand shift....... dual drum brakes.....