I would'nt know if there was any kind of performance gain as I've nothing to compare it with. I went with an electronic ignition purely to have one less thing to service. Cheap enough at £30. I went with a flamethrower because its shiny and it was cheap off ebay. And the leads match my injun
for reference if your type 4 engine has alloy push rods then its a static lifter but if they are all steel then its hydraulic