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2

Although, your point about cold engine mounts applies, I would doubt they heat up enough to significantly affect vibration transfer to the interior. Instead, what you might look at is increasing your idle speed a bit if that's easily doable. Every engine has a range of natural resonance, the range where the engine simply vibrates more than in other ranges. ...


0

Did you install the CAI, or did you buy it from someone else? If it was someone else, they may have installed a chip or had the ECU re-flashed to take advantage of the increased airflow. If so, then you'll need to re-flash the ECU with a stock tune. Did you gap the plugs properly before you installed them? That's an easy step to forget, especially when ...


6

More than likely, you have an air leak If you haven't cleaned out and rebuilt a bunch of 4 carburetor banks in your life there is a good chance you have accidentally created an air leak in the system. Unmetered air will create the symptoms you describe. The giveaway on most lean conditions is the falling idle. It idles high and is getting enough fuel but ...



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