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1,002 Posts
Discussion Starter #1
I see some guys are using -12an line for their pcv system. Why is this when the stock pcv lines are small? I was going to plumb in a -6 line.
 

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Spencer
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823 Posts
Its easy to tap the valve covers without much trouble to 1/2 NPT, which is about a 10 AN size. This is what I have done
 
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