Convert your buzz coil engine to a modern automotive high-tension ignition. The Evac2 coil delivers one very serious spark, then while waiting for the next spark, goes to sleep to conserve battery power. If your engine stops with the switch left on, the sleep mode will save your battery. The very nasty, 2-inch arc, single spark and sleep mode will allow you to run your engine for the full weekend on a single 12V or 18V battery. The Evac2 coil is 1/3 the volume of a standard Ford buzz coil, leaving plenty of room in your battery box for your battery. More information is available in Gas Engine Magazine Oct./Nov. 2021.