"Measure it with a micrometer- - - -mark it with chalk- - - - -cut it off with an ax!" Your choice of a trigger device is fundamentally flawed, unless you're willing to do some major internal modifications to the distributor itself. The manufacturing processes used to make an item that was meant to last maybe 10 years- - - - -60+ years ago- - - -don't lend themselves to working well with modern electronic components.

Since it's becoming painfully apparent that any advice I offer is going to be rejected, I'll back out of this discussion and leave you to repeat the same mistakes I made a few decades ago when I thought I knew everything. Good luck!
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!