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Do you guys think there would be any power to be gained by porting the exhaust manifold. I dont think it would be as much as a header but I think you could gain 5 maybe 10 extra horses by port matching the head and exhaust manifold. Also by opening it up a little to the exhaust side. Let me know what you guys think.
 

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Superd00d
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Check some stuff online first, I remember reading/hearing somewhere that the exhaust manifold is already port matched to the head. I could be wrong though. If I am, exhaust work on a supercharged car usually works well.
 

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I think ported exhaust manifolds would help, if yours are anything like a grand prix's manifolds there is alot of restriction.
 
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