560SL.. rough idle/shaking,then stalls...

[ioang26]

Another update:
I ordered another rebuilt fuel distributor. Installed on the car and jumped the
fuel pump.Then when I press down (gently about 5mm) the sensor/air plate, nothing will come from the
injector ports.The fuel will start coming right after almost 1/3 way pushed down and then further more
will start coming with more volume .
The car will do the same thing - start for 2 sec and then stalls- that's it, I can not keep it running.
I am very frustrated because this Fuel distributor has been sent twice to be rebuilt by the same person and
he claimed that he has tested it and it runs fine.

BTW the zero position and the basic positions are on specs .

What am I missing? Again a bad fuel distributor?