Pro Stock Runabouts (PS) are a professional class of propeller-driven Inboard Racing Runabouts. The high speeds (120+ MPH) make Pro Stock an exciting class to drive or to watch. These flatbottom boats use non-supercharged, 500 cubic inch engines, mounted rear of amidships and driving forward through a V-drive; carburetion or fuel injection may be used. The same hull may be run in Super Stock, so you may see boats with SS/PS next to the number.
