Enhance your classic 1967 Plymouth Valiant, Duster, Scamp, or Signet with our premium Lectric Spark Plug Wire Set. Specifically engineered for all 440 C.I. High Performance engines, these wires provide exceptional conductivity, durability, and authenticity, ensuring your vehicle runs efficiently while maintaining its classic charm. Outperforming standard wire sets, our product guarantees long-lasting performance that adheres to the original specifications of your beloved vintage ride.