10-26-2010, 08:12 PM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Southern Connecticut,
CT
Cobra Make, Engine: SPF - 351W, 944 non-turbo
Posts: 2,105
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Not Ranked
Typically racing filters have a much higher micron rating. They provide more flow at the expense of less filtering. Currently I'm using a Moroso racing filter with a micron rating of 27. The Motorcraft FL-1A is probably about 11. I thought the HP was in the 50s.
Bob
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