Your engine has a different type of pump. There is no triangular shaped regulator. The carb is a C12. One nipple on the pump labeled "out" does point up and goes to the carb. The other two nipples are regular fuel line type nipples, screwed straight into the pump, one is labeled "in" and the other is labeled "R" , which I assume is a return line to the tank. There is a brass screw right in the middle of the pump with a screwdriver slot and a small round hole in the middle of the slot.