Most confusing is the L is over two inches away from the X167. The L is not a clear crisp stamp like the others. It would be helpful if I could include a photo. Also on this 65 are the 2 carbs with a metal sticker on each throat that reads Carter Competition. Look on the side of the carb and raised factory letters read WEBER, so its not an original Carter carb.
I also need to measure the exhaust pipe dia. to help determine if its was original GS. It does have the Gran Sport emblems in the right ( early production ) location and on the glove box.