#1 is about 2 to 3 O'clock firing counter clockwise 1342.
hatnes manual or chiltons manual
A wiring diagram, for a 1991 Pontiac Firebird, can be obtained from most General Motors dealerships. The wiring diagram can also be found at most auto-parts stores.
go to oreillys and buy a chilton book for your vehicle wiring diagram is in it
You can find the wiring diagram for a 1991 Suburban at various auto part stores. You can also check in the owner's manual.
The diagram.
Try PAINLESSWIRING.COM. They will help you with the wiring if you have any problem.
autozone.com has free online manuals, i have gotten fuse box diagrams and component locations etc from there
You can find the radio wiring diagram for a 1991 Ford Bronco in the vehicle's owner's manual. You can also find it by contacting the radio manufacturer.
The manual.
You can find wiring diagrams for this vehicle at www.autozone.com.
For a 1991 Chevrolet Blazer with 5.0L, 5.7L and 7.4L engines the firing order is 1-8-4-3-6-5-7-2 The distributor rotation is clockwise. Here's a web page with a wiring diagram: http://www.chuckschevytruckpages.com/underhoodwiring.html
A free copy of a fuse box diagram and wiring diagram for a 1991 Dodge Dakota truck can be found at the local library. Look for books about automotive repair that are specific for that vehicle.