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Old 10-11-2023, 10:30 PM
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slowbird slowbird is offline
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Join Date: Jan 2001
Location: Montgomery, IL
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Was looking around on Butler and BES sites, I don't see where they advertise a 480cfm pro port head, just a 450-460 head and 52-54cc chamber.
Gach yours are 480cfm and 72cc??

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