You can get within a degree or two of the correct timing by using the points closed/points open procedure I described in a previous post. The spark happens just as the points break, so eyeballing the place where they just break contact will get you close enough to start.
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!