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Out of curiosity does anyone have a side by side comparison between the 6 port stock and the 4 port stock (the ports on the irons specifically). I'm curious because I know you can port the 6-port to be much bigger than the 4-port (but you end up killing the intake velocity), but I'm thinking that the 4-port is in a better position for more extreme porting with less negatives associated with it.
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