You will see a white spark because a spark plug produces an electrical arc
It is black.
The rubber end on the spark plug wire.
at the end of the spark plug wires
The length of the metal threads at the end of a spark plug is called the "reach".
one end on the spark plug and one end on the distributor unless you have individual coil packs
Remove the spark plug wires from the spark plug. Be sure to leave the other end attached to the distributer cap. Then remove that spark plug from the cylinder with a spark plug wrench and re-insert the plug into the spark plug wire boot that you previously removed. Have someone turn the inition key as if starting the engine. Stay clear of moving parts etc. while observing the spark plug end. You should see a spark.
That is the rubber boot that is on the end of the spark plug wire that goes onto the spark plug.
That is the L-shaped female plug at the end of the HT (high tension) lead that fits onto the outer (male) end of a spark plug.
They are located at the end of the spark plug wires.
at the end of the spark plug boots
follow the spark plug wire starting at the spark plug end, when you get to the other end its connected to the coil
Depending if you have the 4.6L or 5.4L; 4.6L = Follow the Spark Plug wires. At the end of the wire you will find the spark plugs. 5.4L = Follow the Spark Plug wires. At the end of the wire you will find a Coil Pack, Under that Coil Pack you will find the Spark Plug.