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Old 06-04-2014, 11:36 PM
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Y-Blockhead Y-Blockhead is offline
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Join Date: Dec 2006
Location: Redondo Beach, CA
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Y-Blockhead is starting off with a positive reputation.
Since your using your truck for towing, go with a four holer. The open plenum design is more for upper RPM power. I believe the original one on a "B" manifold was ~ " thick.
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