What's this all about? Dual pickup electronic distributor?

Dual pickup is a trick setup. If you're on the street, be sure to add vacuum advance.

You can time those two pickups independent of one another. Time one for nitrous, one not, and set them up to switch when you need it.

Or set one up for race gas, one for trash gas, with a toggle switch for whatever is in the tank.

Or set one up to send power to a coil hooked to your big toe, and use a mercury switch attached to your eyeglass frames, so it kicks on if you nod off while driving.

What you CAN'T do is change the advance curves since those are set in the mechanisms of the distributor, so keep that in mind.