I have been thinking of where I will run the sensor wiring. Sensors being, Manifold, Fuel and Oil pressures and Fuel flow, which all connect to engine plug number one. I have looked at many photos from the factory and the majority of wires run underneath the Airbox. There are a number of photos showing wiring running over the top of the Airbox. I'm sure there is no right or wrong answer, however I've decided to run the wires under the Airbox. I will get a second opinion from BDH before I start cutting wires.