Hello Maxam,
Many thanks for your reply. The whole set up makes sense to me now. The carb must be installed with the HS control coming out of the left side of the aircraft. This requires that the throttle control linkage be moved to the right. I now understand Chorner's comment that he countersunk a hole in the mounting plate to flip the carb around. I made a long thin screw driver as you suggested and sure enough the LS adjustment can be reached from the top of the engine. I wouldn't think of hiding this beautiful radial under a cowl, it looks perfect in my Stearman and always draws compliments at the field.
I shale stay tuned as you folks continue to to make comments and give advice enhancing the radial engine experience.
Regards-John