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Old 11-07-2006, 06:18 AM   #25
mquillen
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Join Date: Feb 2006
Location: ohio
Posts: 26
Although carbon build-up isn't good, I suspect another reason (perhaps the primary reason) for the advice to keep the revs up was the fact that all of the early Porsches were air cooled. Keeping the revs up meant airflow--lugging an aircooled engine is the fastest way to kill it.
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