Hand Ported 241's
01-04-2009, 07:49 AM
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Hand Ported 241's No luck in my search. I would like to know what are the typical HP gains of hand ported 241's? I know typical gains from CNC port jobs on heads are around 30hp. Does anybody have any before and after results on hand ported heads, flow numbers would be good also? I know results can vary from person to person, I just want to get a general idea.
01-04-2009, 08:50 PM
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