Related Photo Galleries
There are two things to note here. Firstly, the MAP sensor is mounted on the throttle body using a ring bracket from a Mercruiser marine application. The sensor measures manifold vacuum and senses barometric and altitude changes, allowing the ECM to supply the required correct fuel and spark settings. Secondly, this shows the braided fuel lines that were custom-made at NAPA with AN fittings to match the Pure Choice adaptors, along with elbows at the end for distributor clearance.