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Just put some 93 octane (available at the pump) in and a little octane boost. After you pass emissions you can start adding your 87 octane back in incase your engine isn't build to run on High octane. My dad's 63 impala requires lead additive to run right do to the valves. With the small margin by which you failed this should bring you right in. I can't believe they have you testing vehicles as old as our trucks in Arizona. With a population per square mile of land ratio Arizona has you would think it would be an emisions free state.
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