Here are two photos that might help. Unfortunately, the cables were removed before I was able to take the picture, but I might be able to explain after the second photo. These are from at 1275 '67 engine, so if yours is different it may not be totally accurate.
In the second photograph I have noted the location of the choke cable attachment at "A" and the throttle cable attachment at "B". There is a fitting similar to that at "A" that goes into a hole in the metal "wing" that extends off the back of the throttle shaft.
According to the books, when you adjust the linkage there is supposed to be a small space between the curved edge of the "wing" and the heat shield. I don't remember the space size, but it is supposed to be set with a feeler gauge. It can be done single handed, but it helps to have an assistant.