I got this car in pretty lousy condition, but being an experienced DIYer, I
would like to get it in shape.

The problem is that there are a few disconnected air hoses, and a few
disconnected wires under the hood, and even more troubling is the fact that
it is neither injection nor a standard carburettor engine, rather it has a
Solex 34 TBIA carb, and katalysator, and some sort of primitive ECU that is
supposed to do... something. Apart from float chamber breather solenoid,
there are 2 more non-functional solenoids, which need replacing, but I don't
know what are they supposed to do, and what to connect them to. They act as
valves for some of fuel lines in the carburettor.

I don't know what to connect to distributor vacuum advance unit (there are 2
places on the carb body that I coud do it, one has high vacuum during idle,
the other one doesn't seem to have any vacuum while engine is idling)

There was a sort of an "electric turbo unit" under the hood, which I think
was supposed to be blowing air into air filter, but, I have never seen
anything like it... It runs on 12V, blows air quite strongly, but nothing
special. Will it help or obstruct air flow if i connect it to intake air
filter?

I would appreciate any info on this engine/carb, haynes manual for p309 or
p405 doesn't cover this engine/carb configuration. Engine code is BAZ, which
I found to be supposedly same as BAY (XU5CP), it was also built into citroen
bx 1.6.

Thank you for any help you can provide.