Look at my plugs detonation?

loudvolvo

Amateur Racer
Jun 23, 2009
117
0
0
kentucky
Mike Allred said:
Your plugs don't appear lean or detonated -- just chalked up with additive contaminants. I'd clean em up, fill up the tank with a different brand of decent fuel and run er' at 36 degrees. Detonation looks like black or gray specks. You're growing white fuzz on those plugs.
what brand gas do yall recommend thats easibly available around town? i usually go to the Murphy USA gas station becuase i get a discount up there. running race gas isn't an option, the closest place that sells it is at least an hour away.
 

unholy1

Weekend Racer
Nov 16, 2008
56
0
0
Marion, Iowa
formikec said:
Mike Allred said:
Your plugs don't appear lean or detonated -- just chalked up with additive contaminants. I'd clean em up, fill up the tank with a different brand of decent fuel and run er' at 36 degrees. Detonation looks like black or gray specks. You're growing white fuzz on those plugs.

x3 (there was a similar post above)

x4. Same happened on my Procharged motor. Two plugs had chalky crap on them. Changed plugs, new gas, a few runs and they all look clean now. BTW, I run Turbo Blue 110.
 

Goob

Top Fueler
Jun 6, 2003
3,641
0
0
Indianapolis
Looks like oil is getting in those cylinders to me.
Valve seals/guides.
 
A

Anonymous

Guest
i would check for a possible intake leak over the 6, 8 intake ports... but a hair cooler plugs cant hurt. if you pull the breather off your valve cover on that side and run the engine and spray something combustible in the valve cover to see if your idle goes up. if it does, then you might have a leak in the manifold gasket around those two intake runners... just a thought...
 

TNTS79

Dragway Regular
Jan 6, 2006
1,252
0
0
Illiniois
What I would do:
-Jet your carb up a bit
-Remove and Clean Re-gap .060" all your plugs
-Change fuel brands, try BP Amoco if your running pump gas if not add a few gallons of 110 sunoco to your existing gas.
-Check your timing with another "known" good light.
-Check all your intake and header bolts
-Set your timing
Try 14-16 initial (no vac advance) 32 or 34 total at 3000, wouldn't go anymore than 38. It would be best if you could make passes to see what the extra timing does for you...
 

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