My DH-Racing PNP Head
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My intake ports were smooth when I got it back. I know that's wrong, but I haven't noticed any problems really, except rough idle. Maybe that's why?
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Originally Posted by gearbox
My intake ports were smooth when I got it back. I know that's wrong, but I haven't noticed any problems really, except rough idle. Maybe that's why?
I have smooth intake ports too, but I was wondering - I have a dremel, and some time....I could roughen up the intake side myself a bit, but I don't have any idea how much to roughen it up! Anyone have some pics of a rough one, or some solid advice on how to execute this operation?
Joined: Sep 2002
Posts: 51,241
Likes: 20
From: NV
Rep Power: 812 Yeah. Don't just take a dremel to it. The stock ports had a bumpy surface on it, almost felt like a fine layer of sand if you know what I mean.
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Originally Posted by gearbox
Yeah. Don't just take a dremel to it. The stock ports had a bumpy surface on it, almost felt like a fine layer of sand if you know what I mean.
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