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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#7
Fri, February 19th, 2010, 06:12 PM
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I was wondering the same thing. I have an 07 Flex 5.4 with CAI and Cat back not true duel. I just got my grypon yesterday and Bill said to use the 87 Tow until my custom 87 Perf and 92 perf tunes get built. WoW I got that tune all tweaked out just the way I like it. I run 90-92 ans just advances the spark 1 degree. So here is my question what tune do I use if I run e-85? The Custom 87 perf or the 92 or canned tranny only?
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