TwinTurbo.NET: Nissan 300ZX forum - I think the runners are fine compared to the bottom
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Subject I think the runners are fine compared to the bottom
     
Posted by xteam300tt on February 20, 2011 at 1:24 PM
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In Reply To whatever happened to plenum work posted by MeetMyTwinz on February 19, 2011 at 10:08 PM
     
Message portion of the lower plenum , That's your choke point . You can open up the top all you want , it still has to squeeze through the lower plenum . So port match the lower intake to ported heads and take out that restriction . The stock lower intake ports are smaller than the head intake ports to begin with .

     
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