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Old 02-10-2021, 05:01 PM   #1
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I've heard that porsche valve stem covers will add 5hp straight bolt on!

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Old 02-10-2021, 06:03 PM   #2
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So not even a different cam grind would help the
power ?
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Old 02-14-2021, 02:25 PM   #3
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Quote:
Originally Posted by flmont View Post
So not even a different cam grind would help the
power ?
Not until you get past 3,000 Rpm, and you will be much slower to 3,000!
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