I had been running a Mallory Unilite since 2008. About two months ago I was driving about 10 miles from home and the engine quit. I was not getting spark at the plugs. When it cooled down it started. I checked the module, ballast resistor, and coil. It was all fine. I messed with it off and on and changed all the parts mentioned and the wires connecting it all. I tested the battery and it's connections. Finally I put the points distributer back in and it works fine. I'm making a lamp out of the Unilite.