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New Guy Needs Help!
New to the forum so any and all advice is greatly appreciated! I have a bone stock 07, 5.3L 4WD with the 20" Tahoe (5 spoke) wheels towing a 7'x12' tandom axle enclosed trailer. Fuel economy is averaging 9.3 on the highway at 60MPH with the trailer empty! It constantly wants to run high RPM's...- Indyyukon07
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- Forum: Performance
