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Original Thread Posting!!! :fm:Stupid website, it crashed on me when I submitted, anyways. Yes, im doing a tune up on the "new" 1999 lightning I got. 158,000 miles. Im changing out all of this... Fuel Filter Motorcraft Mobil 1 Oil 5w-20 Motorcraft Oil Filter Cleaning Air Filter Carb Cleaner...

Hey guys, im new here, I just bought a 1999 Ford Lightning with 158,000 miles for 6,500 bucks :) Thought I could get some tips? It came with a diablosport tuner, and other than that I don't know any mods it has, It does have an Eaton on it, and ill check the tranny later. But any tips guys...

Hey guys, I just bought a ford lightning 1999. I wanted to know which tune on the diablosport would save me the most gas? best mpg tune? the 87 octane one? or 93? or stock tune? And which tune would give me the best performance for racing? Its all stock by the way. Oh and there are lots of tunes...