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?

I'm going to put on a headgasket and arp studs soon, so DP suggested I do port and polish.

What kind of specs should I be looking at?
 

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got mine done @ JUN through Area51 like ages ago lol... :crazy:
 

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From my experience albeit limited unless you are running bIG im MEAN BIG numbers chances are a P&P will reduce the flow of the head. With the way heads are designed now they usually flow well from the factory.
 
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