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poor fuel milage

  1. 5.0L Talk
    Hey guys, ive got a 88 5.0 Mustang with an AOD auto in it, and its 100% stock other than a stereo, any how, im noticing im getting poor fuel milage, i know my cataylist converters are blocked, but still getting pretty good flow, i know that might have something to do with it, but what else could...