When it was stated that you can use the stock coil . Not he 240 coil but the ZX coil and it will be on 12 volts and no resister. Gary

If you are using an MSD box, you should be able to eliminate the stock inginition module by running the output of the dizzy's pickup straight into the MSD box. I have a box on order, so haven't done it yet myself, but I've read others say they have, and the MSD instructions show it should support that.