Engine number question and Weber carb wanted

[Havinga]

I need some help to clarify if the engine is really a 2.4 T (european build 1972). I know the engine is rebuild and I want to know if the numbers match.

Engine number, located at the right-hand fan housing is: 911 / 57
Further the number I can see ( support member housing) is: 6532870

The chassis serial number (vin) is: 9112501509

Further I am looking for Webers (or Zenith 40tin) carbs. Mine (zenith) have a crack and I need to replace!


Thanks
Matthew