I'm using the original Bosch air control on the 3.2 intake on my 930 engine. I use the MegaSquirt FIDLE control to switch it on and off (no fine tuning). There's a circuit around here somewhere that shows how to modify the Bosch connections to make it work with FIDLE. I can dig them up if you're interested.
07 Audi A4 2.0T Cabriolet - Black/Black (sold)
96 993 C2 Cabriolet - Arena Red/Tan (sold)
82 911SC - 993 Turbo Cab Trib - Speed Yellow/Black (sold)
58 DKW Universal - Baby Crap Yellow/Beige (sold)