11/14 hooker?

[bored&stroked]

Local guy has a 11/14 custom pitched hooker for sale. How would that compare to a 9/15? Add the 2 numbers together and its only 1 more then a 9/15 lol.

 

[Philip Clemmons]

2 degrees on the leading edge is significant. That's big bore/stroker territory in most cases.


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[bored&stroked]

So does the leading edge matter more for hookup/low end and the trailing edge has more to do with top speed/high end power? I'd really like to learn so I don't have to keep questioning people yet I never can find an impeller tech thread anywhere.