Most of Keith's BME engines used C&H...There were some with Falkon...If the 3 sensor wires are red, black, and white, it's a C&H....
And the box should have the name on it....Old C&H, brown box, yellow letting...Later C&H, aluminum box....VERY 0ld C&H, brown box with pop rivets holding it together..Replace it, the igntion is not syncro spark...