The transition from mechanical twinpump I have read was at enginenumber 907001, when the webers was introduced, was this early 66? When did the Hardi and bendix pumps get introduced and where was those pumps located. When did the pump get moved to behind the fuel tank? I know the pump was moved from behind the fueltank to the rear in early 71. The two last pumps, where they both Bosch?

John