When it doubt check the firing order

[Matt Man]

What I thought was a simple valve cover gasket change today, turned out to needing plug wires due to one breaking and the other being burnt. Swapped them out one by one, got it fired up running like garbage hmmm I did them one at a time so I thought no way the order is wrong. Got my haynes manual out and sure enough 2 and 4 were swapped I blame the 105 degree temperature frying my brain hah. Always double check!

[oldpurple]

Mine idles fairly good with 5 and 7 mixed up. I also did headers and dual exhaust at the same time so the sound at idle didn't throw me off as it sounded pretty smooth... but as soon as I drove it was obvious.

[gmachinz]

One time back in college I was helping a friend swap motors from a Monte into a Camaro-only had the weekend to do it since he lived in a college residence house with only a 2-car garage slab-but no garage. So long story short we thrashed it all for 2 days and got er done-until we went to start the motor up....it started and ran...ROUGH but it ran. Then I double checked everything....after finding #1 on the cap, I had ran the firing order as:

1-2-3-4-5-6-7-8

To this day we still laugh about it....that was back in 1997/98!