Mallory dual point

You will either have to build it yourself (IE lathe/ machine work, etc) from other parts or you will have to find a kit, such as PerTronix, "if they make one" for your distributor

http://www.speedwaymotors.com/PerTr...-8-Cylinder-Dual-Point-Distributor,35357.html

a quick Google shows "they" do make some. What model is your distributor?

http://www.summitracing.com/search/...t-type/electronic-distributor-conversion-kits

http://www.jalopyjournal.com/forum/...ry-yl-dual-points-dizzy-to-electronic.602518/