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Pocket porting a stock replacement head like the World S/R Torquer is an excellent way to improve flow at a low cost. CHP will do this before-and-after test in a couple of months. Look for the story.
Flow Power

Pocket porting a stock replacement head like the World S/R Torquer is an excellent way to improve flow at a low cost. CHP will do this before-and-after test in a couple of months. Look for the story.  View Related Article

 

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