LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

IAC drill mod

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Old 06-13-2007, 05:07 PM
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IAC drill mod

Got a 58mm Summit throttle body, and my IAC are maxed at 160, I don't think I have any vacuum leaks and don't wanna mess with the idle screw just yet. I was searching for info on the drill mod but couldn't find any, could someone point me in the right direction?
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Old 06-13-2007, 05:59 PM
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Originally Posted by z28_theantirice
Got a 58mm Summit throttle body, and my IAC are maxed at 160, I don't think I have any vacuum leaks and don't wanna mess with the idle screw just yet. I was searching for info on the drill mod but couldn't find any, could someone point me in the right direction?
sounds like the drill mod is what you need, if I find the thread, I'll post it up
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