A friend of mine told me a few years ago that the good ZC engines were getting tough to find. Is this true? I already have JG head, cams, and cam gears. I also still have a block in need of a rebuild, and of course my jrsc. If I were to continue building this car, I would need an ecu that can be tuned properly. Is Zdyne still around? What do people use for these engines now?