Factory Five Racing Forum banner

secondary air injection

  1. Secondary air injection system?

    Factory Five Roadsters
    There is a tube that runs across the back of my engine (1994 5.0) from one head to the other. I believe it has to do with the secondary air injection. I don't think I need it since a smog check is not required in Utah but I assume I need to plug the holes in the heads. It looks like the holes...
Top