Note the Allen screw in the center of the cam lobe. This JS modification makes it much easier to time because now you can turn the armature easily before tightening the sprocket to set the timing. Timing is extremely difficult without this modification. Notice that the points and condenser fasteners have been upgraded with Allen screws. This make it much easier to work on because Allen screws stay on the wrench instead of falling off the screw driver like slotted screws. These upgrades are exclusive to JS Motorsport.