You guys talking about electronic ignition for the old Kohler K series, what about a system like the Mallory Unilite? I upgraded an old Mallory YL dual point distributor to the Unilite breakerless system. It made one heck of a difference in the 351W/4 speed I had in a '71 Grabber Maverick. The Unilite uses an infrared led with a shutter on the rotor. Kind of looks like a hall effect system except the slots in the shutter are much smaller. As I remember the module bolted in place of one of the points like those Pertronix Ignitor systems.