massive reconfiguration time again.

As you can imagine I've been messing with these carbs for years.
I'm still trying to keep it simple.
I've been trying to work that idle up to a 14-7. I'm pretty sure I went up to the 75/47 earring rods as the 71/47 are in their case.
I'm starting to think throw the 7147 is back in and turn my timing back up a couple of degrees and test on freeway?
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Almost positive that I cracked this number 3 spark plug when I was taking it off after the trip but it seemed to be burning proper like the rest so I changed it to pull the car back in with its old plug. I plan on buying a new plug but it would also be kind of a good experiment to see if it turns the plug a different color?

Ok so here i go sending YOU down a rabbit hole.....

On the holley the idle circuit is seperate from the rest so jet changes don't do much, just the fuel mixture screws. that same circuit controls tip in/cruise fuel. the venture is controlled by the main jets and front metering rods, in your case, power valve on the holley, controlled by vac.(and air bleeds of course).