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IAC Effective area tuning.. ITS A MUST

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Old 01-26-2016, 10:22 AM
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Here's something you can't deny.. These are different. And the flow pattern on it is not just an overlay of a stock gm throttle body.




Stock 78mm throttle body.





Tuned IAC on 92mm throttle body with big cam.
Old 01-26-2016, 11:24 AM
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If you're surging with a small cam, you have an issue with A/F and timing and airflow with your cracker and follower tables. Adjustments there would help quite a bit.



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