Daffy,
I've found this, which should be a start for you...
<
http://www.bccp.nl/techdocs/PMA50ins.pdf >
As regards setting the ignition timing, my recommendation would be the same as for points, to treat the static setup procedure as solely a starting point and to optimise the timing for your engine using a strobe.
Ken
( More later perhaps, but got to go and clear up after this morning's storm, which was so intense that the thunder sounded like a 21 gun salute.

)