I'm interested if anyone has done this mod to their 4.6 EFI engine. I believe it was done to my Cobra because the vent hose below the IAC is plugged. And, the only thing that is hooked up to my cold air intake is a cold air intake sensor. NO vacuum holes at all. Since the car has a fluctuating idle (600rom to 900 rpm) I wondering if this is the problem.


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