The plug wire routing will follow that firing order. There's no single definitive diagram as the routing can vary slightly depending on the specific distributor cap and engine accessories, but the wires *must* follow the 1-8-4-3-6-5-7-2 sequence from the distributor cap to the spark plugs. You'll need to visually trace the wires on your engine and match them to the firing order. If you are unsure, consult a repair manual specific to your year and model Corvette.
