the 123VW-R is created in cooperation with VW-professionals ; this has resulted in a product that can be used in all type '1', '2' and '3' cars, AND that can be used for Porsche 356 and Porsche 912.
The unit comes standard without vacuum-advance, but is also available with ( 123VW-R-V )
The installion instructions show a cross-reference between the original Bosch-number and the setting of the 123VW-R-V. There is also a list, that links VW-engine-numbers with the required setting of the 123ignition.
