distributor question

Thanks for that. Looks as though that has the YL style of advance mechanism instead of the later style Mallory YL.

Does anyone know where to get the springs for that mech adv to be able to set up a proper curve?
the last time i needed some YL **** i got it from a place that does jet boats. i know a bunch of that stuff is NLA, but it pops up on flea bay from time to time. i DO know that the mr. gasket springs are kinda sorta close but fit crappy.