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01-02-2005 #1
How to decipher flow bench results?
I am confused about cylinder head flow bench results? On CHP's website they have posted all kinds of head flow results. my question is about the efficiency rating, particularly Dart Iron eagle and world sportsman II's The darts have a 77% eff. rating but flow less cfm and the SportsmanII's only have a 67% rating. I am wondering what is more important to look at when selecting the best performing head?

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