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Dec 25, 2008 | 10:52 AM

jheppner

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Joined: Jun 2008

Posts: 83

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From: NY

Quick ?

Will a 2005 4.6L run lean with a roush CAI and no tune?...i plan on getting tunes in the future but in case the CAI goes in first will it cause problems?

Dec 29, 2008 | 12:14 PM

stoffer

Senior Member

Joined: Apr 2004

Posts: 13,678

Likes: 82

From: missing Texas...

NO because it's a 2 valve engine

the 3 valve motors are the ones that run lean

Dec 29, 2008 | 09:58 PM