Thread: Holly 770 Street avenger final tunning results
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Old 09-04-2014, 06:35 PM
genolan genolan is offline
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Join Date: Sep 2013
Location: Sparta, nj
Cobra Make, Engine: Backdraft 1048
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Does a Double pumper really make that much more power than a well tuned vacuum secondary carburetor, Is it worth investing $400 to try a rebuilt one.
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Backdraft 1048
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