vacuum gauge to solve idle issue

Ok, made some more changes. Damned Carter 4295 had a "sunk" float on passenger side. Removed and tore down twice to notice it.
So onto carb #3 lol. Another Eddy 1405.
I noticed on 1st Eddy we installed in 2012 that the Tport slots didnt appear equal/even?? So went with carb #3(another 1405) and set the Tport sync. Also removed stock orange 5" step up springs with yellow 4" ones. Done in thoughts that it would help lean it out a bit. Correct?
So adjustments/readings.

Idle at 700 in park
0 vac at dist port on carb(pass side)
19* initial
Fulltime vac 15"
I then adjusted timing slightly moving it up to 20*
Adjusted idle mix screws to maximize vacuum. was able to get 15.2"
Idle now was 775 in park

So made some more tweaks to help lower idle rpm slightly, Im aiming for 700-750

Idle 750
Max vacuum I could get was 14.5" at idle(750)
Intial timing 17*
Timing at 2000 rpm was 23*
Vacuum at 2000 rpm was 18.5"
Took it for a quick rip and seems good, but always looking for better. I think it liked the timing advanced a degree or 2 more.
Throughout all the tweaks adjustments I havent had any pinging. So it likes the timing, but it raises the idle up a bit more than I would like.
I didnt get an "all-in" as Im doing this outside and it was getting late.
I will tweak with it a little more today.
Thanks all!
Pics of 1st Eddy 1405, where I couldnt get Tport sync adjusted correctly. More noticeable in person.

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