Suffered from AD motor

As it is mentioned as "Smog", the combination Solex 34PICT3 carburetor and 009 distributor only with centrifugal governor advancing mechanism makes me nervous recently.
There must be any impossibility to compensate the lack of linearity of ignition timing advancing curvature by enriching the mixture in the carburetor.

Though some fundamental designing of 34PICT3, lean in the all stages would leave problem if the vacuum advance diaphragm equipped distributor may be invited.
The resister value connecting in choke circuitry with series connection should be adjustable resister, rheostat, in order to fix the adequate after idling time interval, probably less than 680 ohm based on an experimental data. The resister value of coil bimetal in automatic choke module is 1,000 ohm.
The wattage is sum upped in 0,15W, so 1/4W resister is enough.
In case of the failure of this electric trial, mechanical treatment is waiting with solenoid valve application in vacuum circuitry for retarding and advancing the ignition timing.
The parts I'm keeping is for electric switched idle up on air-conditioning purpose not for VW.

Judging from the scheme of the carburetor, another way to make mixture rich may be found, modifying function of the choke diaphragm.
The experiment yesterday applying 680 ohm resister in the automatic choke coil heater with series connection prevented the choke butterfly from opening fully leaving one step on the stopper.
The result in impossible condition made the mixture richer leading to remarkable good motor responses.
Once experienced this kind of comfort driving in my VW 1302 Super Beetle, I'm forced that the AD motor should be so adjusted as to operate in upper condition instead of enduring unpleasant lean and flattening performances.