It would be really helpful to know which of the 3 engines installed in this van, you have. So go here: http://autorepair.about.com/library/firing_orders/bl-Chevrolet-firing-91.htm and pick the correct engine.
Get a shop manual. There is no distributor. These have coil packs.
Chevrolet Firing Order 18436572
Plug wires in wrong order, distributor out of sync,Plug wires in wrong order, distributor out of sync,
It is at the rear of the engine and has the plug wires coming out of it.
1-8-4-3-6-5-7-2
All V8 Chevrolet's firing order is 1,8,4,3,6,5,7,2. 1,3,5,7 is on the left bank and 2,4,6,8 is on the right bank. The distributor turns clockwise.
They have to be in the firing order.
It will not matter what distributor you have as All V8 Chevrolet's firing order is 1,8,4,3,6,5,7,2. 1,3,5,7 is on the left bank and 2,4,6,8 is on the right bank. The distributor turns clockwise
All V8 Chevrolet's are 1,8,4,3,6,5,7,2 with 1,3,5,7 on the left bank and 2,4,6,8 on the right with the distributor rotating clockwise.
It depends on the firing order of the engine
What wires are you looking for?
The diagram, for the 1992 5.7 liter distributor And wires, can be obtained from most Chevrolet dealerships. The diagram can also be found at most auto-parts stores.