Well the jury is still out. Mark Suspinski p-port engine seems to be
    working
    fine on the ground with Tracy ECU.

    I think these are stock units that are upgraded.
    Perry Mick has a stock unit working fine. He had to trick a few
    sensor inputs as I recall. Last I heard he was still working on the
    leaning circuit.

    It uses a stock mass air flow sensor that looks like this.

    I am looking for somebody that is close to flying to test my mechanical
    EFI.

    Paul Lamar