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Old 11-23-2014, 09:34 PM   #1
Keith 944
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Default Re: Spark plugs

Thanks Alan, I had no idea the same item could be made into several "grades", again, thanks for that eye opener
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Old 11-23-2014, 09:54 PM   #2
Dave Gantz
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Default Re: Spark plugs

Years ago I was at a Glad plastic factory. They also made "store brand" plastic bags and wraps, etc. It makes sense. They already made the investment in all of what it takes to produce the product.

Alan, we've pointed out several places to get RC12YC's. Are you saying that the "tier 1" RC12YC plugs are not available? I'm confused.
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Old 11-24-2014, 06:41 AM   #3
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Default Re: Spark plugs

Anyone understand the difference between the three different RN12YC?

Is there any reason on running a resistor style plug on a Drag Car?
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Old 11-24-2014, 08:33 AM   #4
Ed Wright
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Default Re: Spark plugs

If you have no electronics (EFI, data loggers, etc), metal plug wires and non-resistor plugs should be fine.
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Old 11-24-2014, 09:20 AM   #5
rallye bob
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Default Re: Spark plugs

I run NGK R5671A-8 4554 Racing spark plugs, in my SB Olds...
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Old 11-24-2014, 08:11 PM   #6
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Default Re: Spark plugs

I run Autolite AR 3910's in aluminum headed SBC
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Old 11-25-2014, 12:22 AM   #7
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Red face Re: Spark plugs

Sorry to scare you guys off asking about MSD spark plugs,,, I know they're fairly new. Perhaps no one has tried them yet? Maybe they'll pay contingency. Just wondering.
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