07-14-2011, 08:20 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
It's hard to really say and no one will be able to tell you for sure unless it's on a dyno where you can see the results. Sometimes the 4 holes give more torque, sometimes the open spacers give horsepower. Sometimes you can turn a tapered Super Sucker upside down and make more horsepower. It just depends....
However, if it's the engine that is in your info, my gut tells me to go for an open spacer.
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