spark plug color read

[1967coronet]

I just put pics of 2 plugs on, all 8 look the same. Champion 12s gap at .040
440 with pertronix ,750 edelbrock . close to 900 miles on this set
I didn't think they were to bad . What do you guys think ? rich? lean ? ok?

 

[Jerry Hall]

Look great to me. Is there a reason you pulled them?

 

[moparnation74]

Normal

 

[67belvedere/225]

tinge lean looking , i have to say mine are the same colour , and 10 000 miles on her since rebuilt my /6 with twin Webers and 268 cam

 

[1967coronet]

Thanks guys, I pulled all 8 just to have a look. The 440 is the one I installed last summer. Its been running fine but has that typical water your eyes back bumper aroma.
I know lean or rich can cause that but crap I don't know what way to go lol.
Prob best just to not worry about the stink and drive it.

 

[khryslerkid]

What are you useing for fuel? Additives?

 

[1967coronet]

What are you useing for fuel? Additives?

Regular 87 octane {no alky} {no additive } this was that motor home 440 8.1 if I am lucky so no detonation problems

 

[khryslerkid]

Regular 87 octane {no alky} {no additive } this was that motor home 440 8.1 if I am lucky so no detonation problems

Plugs look good for that combo. Hard to see the timing mark on them. I liked this article on reading plugs...
http://www.4secondsflat.com/Spark_plug_reading.html

 

[Darter6]

Yeah, All of my vehicles that have carburetors stink way more than our fuel injected car.
Way worse when they do the "winter blend," and here I thought it was just me.
Or maybe no cats.

 

[Bill Monk]

Yeah, All of my vehicles that have carburetors stink way more than our fuel injected car.
Way worse when they do the "winter blend," and here I thought it was just me.
Or maybe no cats.

Yes! Todays gas just stinks. When I fire up the Roadrunner in the garage, even for the short time until I pull the car out, it reeks

 

[lewtot184]

to me the rim of the plug looks a little rich and maybe a little too much timing. I think a vacuum advance can show a little too much timing though. if it runs and drives fine then maybe leave it alone. I don't think iron heads are easy to set up carbs anymore. the crummy gas and combustion chambers do create a challenge.

 

[1967coronet]

Thanks lewtot, yes its running fine and starts good hot. I will not hurt to try to back off the timing a little. That may help clean up the exhaust a little.