It could well do, however the suppressor will not affect the running of the car, it's purpose is to "suppress" the electrical noise created from the ignition system, that would otherwise interfere with devices such as the radio.

It's actually the coil your talking about though, you then have a thick King (LT) lead leaving this that connects into the center of the distributor.

The green wire ultimately connects to the ECU which is what switches the coil.

Martin