Does a 1968 Chevrolet Impala have fuse for the ignition car seem to be getting power coil?

No, a 1968 Chevrolet Impala does *not* have a fuse directly protecting the ignition coil circuit. The ignition system in that era is generally a low-current circuit controlled by the ignition switch, and failures tend to be in the switch itself, the wiring, the ballast resistor (if equipped), or the coil itself. While there might be fuses protecting *parts* of the related circuits (like the ignition switch power source), the coil itself isn't fused directly. A short in the coil wiring is more likely to cause other damage than to blow a fuse.