firing order is 1,6,5,4,3,2 and pluge should run driver sde grill to fire wall 1,3,5, passanager side 2, 4, 6,on the dist. in the front of cap on driver side should be 1 but in if for some reason it's off timing that won't be right
You can find a stereo wiring diagram for your 1990 Chevy Cheyenne 2500 at most Chevrolet dealerships. The stereo wiring diagram will be in Chevrolet service manuals at your local library.
http://www.alldatadiy.com/
any chevy workshop will have wiring diagram and will usually photocopy it for you try Autozones website
You can find the wiring diagrams for a Chevy Celebrity in either a factory service manual or either a Chilton or Haynes manual.
you have to buy the car manual to find the wiring diagram!!! local library should have the chilton manuals, you could look there.
Go to http://www.lexls.com/tutorials/ignition/sparkplugs.html
need a wiring diagram for a 1990 ls 400 need a wiring diagram for a 1990 ls 400
Diagram of 1990 chevy truck steering column
wiring diagram
http://www.modifiedlife.com/1990-honda-prelude-car-radio-stereo-wiring-diagram/
The left bank is 1,3,5,7 and the right bank is 2,4,6,8. The distributor turns clockwise.
try back of the haynes manual