Sorry, forgot about the 1200 valve adjusters, a different breed.
The rocker center shaft has to be free to rotate so it can adjust the valve lash. The hydro adjuster rotates it.
That looks like grease coming out of the final drive. Mine would do that for a few hundred miles after reassembly and fresh grease. I might overdo it on the grease.
I replaced the resistors with a solid copper wire because I couldn't see a reason to have resistor plugs as well as resistor caps. There wasn't any real difference in any performance that I could tell.
Kind of hard to get the performance stuff any more. Back in the day there were performance shops all over, displaying aluminum intakes, Holley carbs, Distributors. Those were the days.
Its tricky getting the surfaces clean and getting the Orings on the front cover positioned, but with patience and some grease to hold the Orings in place, it's not that bad.