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#1 |
Senior Member
Join Date: Nov 2015
Location: Inver Grove Heights, MN
Posts: 898
Likes: 604
Liked 431 Times in 224 Posts
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I'm not an engine guy but I don't think you want 'smooth' inside the runners. Something about dead air sitting along the walls.
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S/ST 51 S/C 53 |
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#2 |
Member
Join Date: Sep 2011
Posts: 104
Likes: 16
Liked 4 Times in 3 Posts
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Those manifolds respond well to porting especially the plenum . Look at some pics online of what chad speier does to those
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