I was told by a pretty reliable source that the material used on the fiber
block which follows the distributor cam
is made in Brazil or Mexico, even though the box says German.  This
material is so substandard that the block wears down prematurely and changes
thepoint gap and timing of the motor. I ended up switching to the Pertronix
Ignitor (magnet-pickup)
on my squarebacks and 914's in order to keep the cars in tune for longer.
So, even though it says German, you might not be gettingwhat you think!

MAlibu Tony 85' Westy  6 degrees BTDC.....42 degrees full advance with tools
and not ears