n00b question here. Just bought my truck a few days ago and I'm working on getting it all dialed in.

I have looked up the firing order of a '66 292 as 1-5-3-6-2-4. Checked several sources to confirm this. The funny thing is, it is now firing 1-5-3-4-2-6. While it runs a little rough, sounds like the valves are a bit out, smells like it's running rich, etc. most of which I attribute to the fact that it's been sitting for a while and I expected, I can't figure out why it runs reasonably well in this order and not well at all in the proper order.

Is there any obvious answer I'm missing here, is my engine a fluke, or any other info/ideas?

Thanks


1966 Chevy C20 292