LD4B OR LD340 FOR 273?? Coil mount?? Need pics

Thats what Im thinking John. But Im thinking mounting on TOP of the carb mount plate, I think that would be easier than mounting under the carb.
Im sure someone has done it, I just havent found any info or pics



Sorry, I dont have either D4B or LD4B, Im pretty sure what I need is LD4B

Sorry, See where I misread now. FYI, it is my understanding that the LD4B is a 340 manifold and the D4B is for a 273. I am putting a 340 together and have a D4B, looking for a better fit for my 340, which is why I chimed in. Good luck!