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    Holley Rich/Lean Indicator

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    FREE check engine light code reading! Most vehicles, most Advance locations. See store for details.
    • Product Details

      Part No. 534-50

      Warranty Details (90 DAY REPLACEMENT IF DEFECTIVE)

      Mounts on vehicle dash, enables more exact tuning, monitor air/fuel ratio of our engine.

      Product Features:

      • Mounts On Dash
      • Monitor Air/Fuel Ratio Of Your Engine
      • Enables More Exact Tuning

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