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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Have a little bit of white on the sparks plugs 54 235- pertronix- gap .039 ...pic... ...pic... Trucks been running good, about 8,000 miles on those plugs Avg 16mpg, carter YF787s, 216 manifold Is this telling me something? | | | | | Joined: Feb 2004 Posts: 29,820 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,820 | Looks like it's running slightly lean. Unless it's detonating under a load or the exhaust system is getting hot, no real problem. If the ground electrode starts to burn away or erode, richen it up a little.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Thanks
I'm running about 8 degrees advanced
No detonation
No electrode wear.
All six looked similar
They are autolite plugs
Just wanted to make sure, going on a 600 mile trip this weekend | | |
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