Thank you guys.
So - I ran into my first 'issue' when taking the manifolds off. More specifically, the middle cylinder on the passenger side - I could not get the "barrel nut" off because there was something in the way of the 8mm hex T-handle I was using.
Attached is a picture (enjoy).
#1 is a stud that I believe to be original with the motor. It is a stud from the cylinder immediately next to the one where I could not get the T-handle hex head in all of the way.
#2 is the stud that is too long (duh) that someone put in there. This rose colored stud is able to be removed by hand, and I immediately saw that this stud didn't belong (insert Sesame street song...).
#3 Is a stud that I purchased from Pelican - as I wanted to get a correct replacement in there. This is just 'a hair' too long, and I will ask if I can exchange it for the correct one. Seeing that I know very little about the history of this car, I am thinking that the manifolds were changed at some point. This car appears 'not very' molested at first glance, but I have a suspicion that there will be other issues similar to this that I will encounter along the way to completing the puzzle.
On a side, I took the opportunity to do some cleaning last night. There is a lot of dried oil, road grime and other debris that this motor has picked up over the years that I am cleaning off, and consequently I am now out of carb cleaner, brakleen, and surgeons gloves. I will restock today and will continue cleaning tomorrow morning for a little bit.
On the list of stuff to do: find a sandblasting company in my area (...or someone with a sandblaster that will let me use it) to clean the engine tin.