SBC Mopar Single Plane Intake Manifold (P4452893)
A W5 top end, this is a large port 4150 intake. Notice where the bolt holes are. There far away from the runner which make attaching the intake easier. It also allows room for a maximum effort porting as well as additional help like NO2.
Below is a standard port intake showing how close the bolt hole is. On some of these intakes, you need a shorter attaching bolt because the runner gets in the way.
