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  1. Most Fuel Efficient EEC-IV for 65 Fastback?

    Classic Tech
    Hey guys, I just got into the classics and was just looking up ways to make my 65 mustang fastback more fuel efficient (yes, I understand there are priuses out there... but I'm sure you can understand why I would want a 65 fastback over a prius). I have a mallory ignition, and am now looking...
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