It looks like that light has a "dial back" feature, that is the 0-60 degree deal they are talking about. MSD does not recommend using those types of lights with thier ignition systems. It seems that the multiple spark play havoc with them. I have seen a $300 Snap-On digital dial back light be almost 30 degrees off on an MSD setup. I would stick with a non dial back type light. I have an old Sun that works just fine.