Wolfgang,
Your bell-crank looks like the ones on my 59 and 60 engines. The bell-crank on my 54 engines is different.
This adjustable bell-crank to carburetor rod can be bent and it has an adjustable, swivel fitting (for carburetor end).
If your bell-crank pivot is closer to the firewall (rather than under the carb), you might also have to shorten the length of the pedal-to-bellcrank rod. You could also place a coupling nut in the middle of the rod (cut the rod and thread the rod-ends). This coupling nut might allow you a little length adjustment.
Tim
