Thread: Questions on Butler performance BPI 315 cfm heads
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Old 01-13-2014, 10:03 PM
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deputydog deputydog is offline
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I run the Kauffman hi ports on my 461,minimal porting (348 cfm), unported victor. 1050 dom, 13to1 comp, small solid roller. 67 tempest ,3850lbs all steel and full interior, 9" slick and run 1040s through exhaust....I'm very pleased with the hiports

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