[Image of a 1987 Chevy 350 distributor cap with wiring]
The wire colors are as follows:
* Red: This wire connects to the positive terminal of the coil.
* Black: This wire connects to the negative terminal of the coil.
* Green: This wire connects to the tachometer.
* Orange: This wire connects to the fuel pump relay.
* Brown: This wire connects to the ground.
Be sure to connect the wires in the correct order, as any mistakes could cause your engine to run poorly or not at all.