Another Q about gears

Still got the bog at light throttle after setting the ignition timing. :banghead:
Dwell angle 28*
Initial at 18*@ 900 rpm, total at 34*@2200 rpm.
Vacuum hose connected to the ported side, however not when setting the ignition.
When I connected the vacuum hose it didnĀ“t make any difference on the timinglight. Did try to retard the vacuum advance but I could only turn the screw in the dist about a half of a revolution
Set the idle screws for the highest vacuum, 11"
Replaced the acc. pump nozzles to 0.43.
Acc.pump linkage in the hole closest to the top of the carb.
Set the metering rods 2 steps richer at both cruise and power mode.
Engine specs in the first post of this thread.
The carb is a Eddy 750 electric choke

Any advice or other suggestions?
Many thanks advance
Lenny