DB 603A and G
 

Hi all,
I know this is a bit of a long shot, but here goes.

1. Does anybody know the whereabouts of a dimensioned DB drawing of the DB603A & cowlings?

2. Does anybody have any information regarding the difference(s) between the mechanical supercharger fitted to the DB603A and the mechanical supercharger fitted/intended to be fitted to the DB603G.

I have searched many published docs, to no avail, but any info would be much appreciated.
Many thanks in advance,
maurice