Since your ADF is a bit older than mine, I'm guessing there are a few differences.
I have heard that some carbs don't have the nipple marked '4' on my image. Thus, you might not have the thermo switch. Mine is a switch that's mounted into the intake manifold, just 'behind' the carb as you look at it from the driver side. It has a hose that runs to a T, one side comes from another electro switch on the driver side, the other side ends at what I think is a vacuum advance on the passenger side (part of the emissions system, as far as I know...Do you still have all that equipment?).
My fuel lines are 'stacked'...for me, the return is on the top and the bottom goes to the fuel pump. Why you have 3 lines is beyond me, though I have some metal lines that go into my brake booster (which I know nothing about, TBH)
On the under side of my air cleaner, I've got a small nipple...that one is connected to '3'
My vapor canister has a nipple on the top and one on the side, low down. I call that one the 'bottom'. It goes to #1.
As for your high RPMs, I think you might still have unwanted air getting into the carb especially if you have some hoses that aren't connected to anything. I'd start with getting everything connected correctly, then make sure that none of your vacuum hoses are old and cracked. If none of that helps, I'd take the carb back out and do all the bench adjustments (I can send you the docs I have, though they're tough to read).
Everything is working! Sort of...
Which line is the fuel return? I have 3 lines, the one on the drivers side is to the pump, I assume the middle is fuel return, and the outside right isn't hooked up to anything, just a hose hanging there.
Where is the "thermo switch t" located at?
And I cannot locate am air cleaner...
The vapor canister still has one nozzle on the side that has no hoses on it. Any ideas?
The engine runs very high rpm with no power loss when I step on the gas. Might this be a vacuum leak?