thanks... regarding the ALDA function I removed it and put shop air ( turned way down) to mimick boost and the plunger recedes properly.. I then reinstalled... and to clarify the "at port" comment that was to indicate that I have a single unobstructed line direct from intake to the ALDA... so in answer yes and no ... in that I did not do the drive test with removed but given that I have tested its function and the degree of smoke emiitted at all throttle positions (varies by throttle but smoky throughout and very smoky at full throttle/load )... I feel fairly certain that ALDA/ enrichment is providing full fuel... I am obviously overlooking something or have yet to learn something ... for reference and comparison of function my 91' W124 serves well ie degree of smoke etc...
the only other thing I can add is that the 92' in question was getting better fuel mileage and had more power at lesser throttle positions than the 91 until it suddenly lost power at which point I did the turbo gate mod etc....