RedCSX1 Morgan, it's correct and have seen coils mounted on all different kinds of motors. If it's an
oil filled coil this
oil is used to control the heat in the coil and prevent break down of the wiring and hot spots. I know mounting a coil upside down and running it for a couple of hour does give a nice whienny roast under the hood. Not my car. Have always been told that straight up and down is the best way to mount. 45 degrees is better that laying flat on the motor. I think a 35,000 volt coil can be mounted anyway you want and have no problems if it's running a ballast resistor to keep voltage down to the coil. The new stuff with 50,000 to 85,000 voltages is a different story. Most of these coils are "E" coils and have no
oil to cool them. This is why they need to be in an air flow of some type and not mounted on the fire wall behind the carb or air filter. Rick L.