My Chilton repair manual lists 1954 and earlier distributors with 6 volt ignition at .015" point gap or 42 degrees of dwell. 55-63 12 volt systems are listed at .019" and 30-32 degrees of dwell.

Now, in about 3-2-1 seconds, some Google guru will tell you I'm all wet and quote all sorts of distributor part numbers and factory specs to prove it. I have a comment about them that's not PC Patrol friendly!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!