modifying brake servo pipes

[bmw9818]

im using my old m40 servo, swapping in m20 is there any reason why bmw used a twin pipe design for the m20 engine?

Is it possible to block off one inlet on the m20 throttle body with sillicone and use the m40 servo hose?

and also block up the outlet on the air flow elbow,

thanks

[Brianmoooore]

Later 325s used the same set up as the M40, with the second connection on the throttle body deleted, and an air hose without the branch to the servo.
Rotate the servo through 180 degrees to put the connector in a more suitable place.