If you are fitting it whilst the dizzy is in the car, then will be lined up already, so long as dizzy not turned, just leaves the gap to be set to 0.2mm - 0.3mm, make sure the phase sensor is sitting exactly parralell to the lobe on the dizzy shaft as some are it seems distorted slightly and need a GENTLE bend on the plate of sensor, as mine did but was new.
Once gapped job done.
If it is a new one it will be one RED wire one BLUE wire on the small leads from it to clip to inside of the terminal that goes through dizzy body, the red lead goes to the nearest terminal in the block, to the phase sensor.
tabetha