E85 plug read please

Blown38

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How does this plug look? 4.6 DOHC 3.4 whipple crusher at 25 psi. Afr is set at and running at .71 lamda 10.5 gas scale. Timing set at 18 seeing 15 due to high IAT. Plug is BR7EF. Should I go to an 8?

20160330_000906_zpsi4trhbgb.jpg


20160330_001018_zpsrfling4c.jpg
 
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Weather Man

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The insulator looks very white. Is there any speckling or tip erosion on any of the plugs?
 

Blown38

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no speckling on that plug. i haven't pulled the others yet. will probably do that tomorrow. car ran very well on that tuneup. 1.43 60' which is what it used to pull on nitrous. and ran 10.18 @ 127 letting out at 1000' due to hitting 7k limiter that i cannot get rid of. car weighs 4200 with driver.

engine was accelerating very fast. i had to lower the 1-2 shift 3.5 mph from old race gas tune to not hit the limiter.
 

Outonyou

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You're gonna have to cut the threads off to be able to see the fuel ring left on the porcelain. The timing signature looks PERFECT!!
 

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