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  1. New piggyback EFI (potentially ignition also) unit

    Grom Performance
    Hello folks, I'm planning to build a new piggyback with a lot of possible functionalities and some upgradeability for the technically inclined - and looking for your feedback. Quick introduction. If you want to cut to the real deal, scroll down. I'm hobbyist, with a degree in both electrical...
  2. Fuel Controller Link

    Grom Performance
    Fuel controller or old Atari 2600 parts? Thoughts?