get the dampener slit a bit further CCW than the left edge of the timing tab (so you are ~ 20 deg or so BTDC) then with a 1&1/4" socket/short extension/breaker bar turn the dampener carefully back CW till the tooth is dead even with the magnet then replace the dist and turn the housing till the magnet is dead even with the tooth which will put you back to your orig position for an easy fire up. Or pull the center clip/reluctor and replace the top plate/pickup assy. I'm assuming you did it when hot. You might ohm the pickup when cold and when hot & acting up just for a baseline. If you swap complete dists grab a helper & plug each dist in (the zigzag connector) & spin each ones' lower shaft by hand (key on) & see if you get sparks from one, out the coil wire but not the other. The suspected offender will be cold which will skew the test but I always get a kick out checking em that way.