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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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What are your rpms at 65-70 because I was thinking about doing the same. Did you have an improvement in that range. It makes me mad because 45-55 I get 18+, same for 75-85. But I get 16 at 60-70 and guess what speed I'm supposed to be driving over here?
![]() On the two manuals just keep in mind that the gryphon has options/improved options compared to the edge evo like the datalogging.
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