[Jac Mac]

Priobe-
Idle fuel jet--------75
Idle jet holder -----110/120

Main fuel jet-------170
Main Air Correction-130/140

Pump or Bleed------55

Choke size---------42mm

Check your fuel pressure (running & as close to carbs as possible- remember webers dont like high pressures)

From the info you have given it looks like your main problem has been the air correction size- dont forget to check the advance curve out as well.

One other thing that helps is any form of anti-reversion cone in the exhaust primary pipes- really smooths out the idle on a setup like this.

Jac Mac