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Re: ebay heads?
Also, don't just look at airflow. You need to look at air flow, valve diameter, and runner size. Too big of a valve and runner will slow the speed of the air down, resulting in less cyl fill (meaning less power)..
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------Motor---------------Bottle
60'---1.53---------------1.41
1/8---6.58 @ 105.92----5.87 @ 118.41
1/4---10.38 @ 126.97----9.24 @ 142.49
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