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How much horse power?

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Old Dec 9, 2008 | 11:11 PM
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Default How much horse power?
Generally how musch HP to do gain from porting and polishing heads? My throttle body and intake are already done.
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Old Dec 9, 2008 | 11:20 PM
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Way too vague. What are your other mods? What head castings do you have?
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Old Dec 10, 2008 | 01:24 AM
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15-20
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Old Dec 10, 2008 | 10:30 AM
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k&n filter charger 45lb fuel injectors, slp longtube headers, slpx pipe, corsa pace car exhaust. It also has a custom computer tune.
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Old Dec 10, 2008 | 11:47 AM
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we really need some more info.. Usually when you do a set the valves are enlarged.. you can see 35 plus on a good port job depending on the starting casting.
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