Quote:

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If you want the best CNC ported heads out there, go talk to Chapman. They are an example of CNC porting at it's best.

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Chapman did one set of my W-9s.... plus I sent them a
broken W-9 they ported to see if it could be repaired,
it was beyond help... they duplicated my one to
a tee.... I still touched up the machining lines,
they are the ones I picked up 2 cfm for just a short
bit of time

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mike, did you have another set cnc'd by someone else, if so do you know the difference?