Retrofit EFI Harness - MS3X V3.0

  • Sale
  • Regular price $584.95


We've teamed up with Grawmondbeck's Competition Engines to offer a simple yet affordable option for upgrading to sequential fuel injection on your classic ride with a conventional-headed small block or big block.

  • Available for GM, Chrysler and Ford engines
  • Utilizes a dual sync distributor and GM ignition control module for spark
  • Coil near plug ignition also available
  • Custom tailored to your combination of intake and throttle body
  • Basic boost control, nitrous control, automatic fan control and more