MB Doc .
Are you using a stock MB fuel press. reg? or do you have a adjustable one? Does bosch make injectors that flow more fuel for the 16v?
Also how are you figuring you are riching the mixture , from the O2 meter? About how many turns of the mixture screw about? (summer day)

I really like how the 16v pulls with the EHA off but it sucks following someone slow, may be I can rig a switch on the dash
to turn it on and off at will