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Spark Plug Heat Range
#1044911
08/01/11 02:27 PM
08/01/11 02:27 PM
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Joined: Feb 2008
Posts: 992
Simi Valley, CA
MoparJ
OP
super stock
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OP
super stock
Joined: Feb 2008
Posts: 992
Simi Valley, CA
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I am currently running Autolite 66 plugs in my 8.5:1 318, .030" over. The cam is a Comp XE268 (.477/.480 lift) and using an Edelbrock Performer intake. The carb is an Edelbrock 1405 600 cfm. Hooker headers and a MP quick advance distributor with 18 degrees initial.
Would you guys continue to use this plug, or use a different heat range. If so, which? Different plug brand?
2016 Ram 1500 Crew Cab: 5.7, 65RFE, 4.56 gears with locker, Hemifever tuned, AFE intake, 87mm throttle body, JBA headers, 3" Flowmaster exhaust, split to dual 2.5" exits. 13.57 best ET so far.
Searching for new A or B Body Project!
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Re: Spark Plug Heat Range
[Re: MoparJ]
#1044914
08/02/11 04:57 PM
08/02/11 04:57 PM
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Joined: Feb 2008
Posts: 992
Simi Valley, CA
MoparJ
OP
super stock
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OP
super stock
Joined: Feb 2008
Posts: 992
Simi Valley, CA
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Would a Autolite 64 or 65 be a colder plug? Mine seem to be tad warm running, judging by the whiter tips and electrodes rather than brownish. Maybe I need a slightly cooler plug? Carb mix is ok.
2016 Ram 1500 Crew Cab: 5.7, 65RFE, 4.56 gears with locker, Hemifever tuned, AFE intake, 87mm throttle body, JBA headers, 3" Flowmaster exhaust, split to dual 2.5" exits. 13.57 best ET so far.
Searching for new A or B Body Project!
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