Hello Andy,

thank you for your thoughts about my plan. Then I will search for a MC21 carburetor with TPS and air correction components, this will surely be the best choice.

One more question on the air correction components differences between MC28 to MC21, because I think i can perhaps directly use the parts I already have:
The solenoid valves and the "+" (X-connector) have the same part numbers on CMSNL for both models. However, the "Y-connector" has a different part number.

Does anyone know if I can just use the MC28 "Y-connector" for the MC21 carbs as long as I follow the correct MC21 hose layout?
Is there a notable difference in the internal restriction of the "Y-connector"?
(alrealy have read some threads about the X and Y Connectors, but I'm not quite sure)

Thank you and kind regards, Felix