Thread: 392 carb
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Old 11-25-2002, 08:33 AM
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Len Hurlburt Len Hurlburt is offline
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Join Date: Apr 1999
Location: Illinois,
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Default Carb size
In dyno tests with a friends SPF with a well built 408W, we had the opportunity to try 650 and 750 Demon's in the same afternoon. After optimizing the jetting in each carb, we found the 650 gave us 399hp at the rear wheels and the 750 405hp. Both run up to 6200rpm. We settled on the 650 as it seemed to give more throttle reponse and was much crisper throughout the range.
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