The "pad" for the '68 B-body Plymouths is smaller than the '69 and still haven't figured out why? But I do know they moved the ignition timing decal to the left/driver's side which IMO is the wrong place when setting the ignition timing per the decal. With the larger '69 pad it blocked part of the ignition timing decal so it got moved in '69. '68 show judged B-body Plymouths should be docked points if the ignition timing decal is on the driver's side like the '69's