I have access to a computerized CNC milling machine that can make the adapter. The Bosch system was probably ok in 89 but it's old hat now. It's too expensive and complex to diaganose and repair so it needs to disappear. If Edlebrock and Holley made parts for this thing it would have them on it!!! I may have to blaze the trail here because I know there are hundreds of you out there that would love to make boat anchors out of this worthless system, including that trademark of stupidity, the "OVP".