I am interested in your 6C 2500 supercharger and I have a few questions:
Does it require any modification the nose of the crankshaft for the drive?
Does the blower casing clear the steering box in the chassis?
What carburettor have you used with it?
Is the car Right hand drive?
If so, it will not fit due to the steering box.
In the 2300 MM we have fit the steering box from outside the chassis to clear the supercharger. It would require an new flange to be weilded to the chassis an an extension on the connecting bar for the steering.
I would normally suppy a replacement bolt for the end of the crankshaft an all other bolt on parts. We have used SU carburettor 2 inch.
Some of my friends have also used down draft Webber's in special applications.