discussion on ignition pick up coils

Pickup sensors generate voltage based on rate of change of magnetic flux. Pickup coil is biased with a rectangular magnet on back side. When reluctor rotates, area between teeth is distant to pickup, with space consistent, so little change in flux, sensor output near zero. As tooth approaches pickup, flux reduces, and sensor output goes negative, when at center of tooth, output drops to zero, as tooth exits, positive signal, followed by zero again in open space between teeth. Rotation CW vs CCW, results in same look of signal, difference is in edge of tooth. Ignition trigger is always on trailing edge. No rotation, no signal, faster rotation signal amplitude proportional to RPM.

As others suggest, relutor set for edge difference, changing rotor phase for sb and bb.

An easy way to check is use a timing light, set desired timing. An example is 13 BTDC at idle. Turn off engine, turn crank to 13 BTDC, pull distributor cap, observe reluctor tooth to pickup nub location, it should be on trailing edge, based on rotation. Remember what that looks like, use it to static time, and be within 1 to 2 degrees. It is important to rotate correctly to position, and never back it up, backlash will mess up test.