misfire when hot

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  1. F

    Misfire and backfire only when hot

    I have a baffling situation after my 87 gets hot. It runs great for 20 minutes or so but when it gets warm it starts missing out and sputtering - at first only during acceleration, then at steady driving and finally it will do it at idle and finally die! Changed injectors/chip from TurboTweak...
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