I was told a 2003 ram 1500 5.7 hemi with 6.1 valves springs and pushrods with pace setter long tube headers will run off a 91 octane tune... if I get a 91 octane tune with the tunability of these trucks will I still be able to run 87 octane?
Sun, 05 Dec 2021 15:49:36 +0000---------------------------------------------------------------------------
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