Mallory HyFire VIIS Sportsman & VIIC/VIICR Pro Competition Ignition
HyFire VIIC Controller
This controller makes it easy to change your HyFire VIIS to a VIIC without swapping the entire ignition. It has push-button controls and doesn't require chips for adjustment... simply plug in the new controller to upgrade your ignition.
Note: Not for use with Hall Effect sensors