i gave my car a tune up about a year ago (~10000 miles ago). new fuel filter, motorcraft copper plugs (22C) gapped .54, live wires, sreamin demon coil packs, cleaned fuel injectors. now my car has it 100000 miles and now it falls flat on its face at about 5800-6000 and will not go past that. does anyone know what the problem could be and any suggestions on how to fix it?
thanks
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thanks
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