Need help with firing order - ignition

[jcwalsh1]

Well I have just about given up. Are there any other firing orders other than
1 3 7 2 6 5 4 8 and
1 5 4 2 6 3 7 8

I have checked and the distributor looks to be pointing to the marked #1 spot when it is close to TDC on the compression stroke. One of the biggest issues that I have is a previous picture of the engine shows the plug wires in neither of the firing orders listed above. Do I need to pull the valve covers and look at the valves as I crank the engine over? I will post the pictures of the spark plug wires below.

This goes back to this thread
http://classicbroncos.com/forums/showthread.php?t=134887

 

[Broncobowsher]

Those are the only 2 options for firing orders. Wish I knew you were still having problems, I just left Shawnee yesterday after a long weekend back there.

For reference I have a boat that had 2 plug wires swapped. Could never figure out the firing order as a couple were listed for boats. Then I realized that 2 wires were swapped. Could not believe it, so I marked them. Went out on the lake, drove just fine. A little low on power, but I didn't know that for sure. Swapped the 2 wires and expected some backfiring or something. It started snappier and woke the power up. Gained 700 RPM at full throttle.

It may be completely possible that someone put the plug wires on in the wrong order before.

 

[cupcake]

No you can always loosen the spark plugs and turn over by hand and listen for the hiss to find which is coming up on compression if you think something is odd

 

[Viperwolf1]

Or pull a valve cover and see what order the valves open in.