One thing I like about Lat-g is not posting in my project thread for 18 days and I've been bumped to position 114!
Regarding the carb......I pulled it off to reverify butterfly positions and change back to the 6.5 (as delivered) power valves. Transfer slot exposure was .025 as I was told by the Holley Tech.......

I thought screw that since I've been getting a crappy idle signal (rich at idle, lean at take off) and closed the primary and secondary butterflies then opened them a 1/4 turn, checked the pump linkage tension, went back to the 70 idle air jets as delivered, and set the fuel screws at 1 turn out.
Fired it up and tried to adjust to a stable 1K rpm idle with the idle air bypass circuit but it wanted to hunt a little. Gave it about 1/8 turn on P/S butterflies and readjusted the IA bypass and it was close. Put a vac gauge to it and set the fuel screws which end up around 1.25 turns. Bingo! It was close. Test drive indicated when slowing to a stop it wanted to stall, added an 1/8 turn on the full screws, better, another 1/8 and it's pretty close.
If that tech happens to read this............
Today the daughter and I took a quick trip to the scales to verify the car weight.............

Weights are with just over 3/4 of a tank of fuel.
3360 with 90 lbs of fuel - Front 55.35% Rear 44.65%