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Drilled Throttlebody. From the factory????

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Old 04-28-2005, 05:50 AM
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Default Drilled Throttlebody. From the factory????
My buddy has a 2002 SS Camaro. When we took off the airbox, the butterefly had a hole drilled in it as they do when a cam is installed.

He said he bought the car new. Is this done at the factory??

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Old 04-28-2005, 07:57 AM
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yes
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Old 04-28-2005, 08:12 AM
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All you do with a cam install is drill it out slightly larger. Although it's best not to drill it out unless absolutely necessary.
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Old 09-09-2005, 01:28 AM
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My throttlebody has a hole in it from the factory.
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Old 09-09-2005, 06:56 AM
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Yes, it's to assist the IAC system.

When you add a mild to big cam, drill it out 2 drill bit sizes bigger and then adjust your IAC tables.
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