SUCCESS!!!!! Well kinda, I've made headway and getting closer. Got a late start today but I also received my Holley 5200 book (more on that later).
Tore the carb apart and blasted every orifice nook and cranny. Cleaned out the power valve, jets etc. Long story short, closed down the throttle plate, might of had debris in the power valve and reinstalled the original main jets and air corr jets that came with the carb.
By putting in the smaller mains and air corr jets I was able to start adj the idle mix screw. I think that played a big factor. Now in idle in drive getting 14-15 A/F and driving 30 mph 13-14 A/F. I still have some fine tuning to do but I'm much closer to where I want.
Right now I'm running;
Mains: 315/223 = 150/130 +/-
Air Corr. 195/165
Idle: 70/60
Pump: 40
I'm about 1 1/2 turns on the Idle speed and about 2 turns out on the mix. Idle Rpm 600 -700 in Drive
I think I might go a bit bigger on the idle mix which will get my mix and speed screws closer. Haven't had a chance to take it on the freeway yet either.
Once I get it dialed in I'll add my numbers to the spread sheet
The book is a great reference item. It's about 92 pages with lots of pics. It broken down by section, 5 -6 pages each; Fuel Inlet, Idle, Main Metering, Accelerator Pump, etc... Has a generic diagram and a specific diagram for each section and explains how they work. Let me know if you have any questions and I maybe email a scanned section.
Now I can head to Vegas with a clear mind
