Let you into a 'title secret: the pre '71 Slant 225 2bbl 'Pacers' in Australia, Both the 4 Door Dressed up Sedan (like in this Displayed Advert) & the 2 Door Pillar less Hardtop (VF/VE models etc ) USED a split Twin Outlet Exhaust Manifold & gutted muffler, as well as a Warmer factory Cam along with its 2bbl BBD Carter Carb ) & Tach in the Dash & 3 speed Manual Shift on the Floor ... That was a torquey beast that engine.