01-09-2012, 07:39 AM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,453
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Not Ranked
Sometimes a fancy plug will show a small increase on the dyno. And sometimes not.
Platinum and iridium are only there to increase longevity, not performance.
I use standard copper core Autolites in everything. You have to change them a little more often, but they're cheap, easy to come by, and reliable.
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.boB "Iron Man"
NASA Rocky Mountain TTU #42
www.RacingtheExocet.com
BDR #1642 - Supercharged Coyote, 6 speed Auto
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