I have the LH side 2951865 manifold dated 10/22/69 or 11/10/69 to offer. I also have a 2/71 LH side 2899879 manifold. The 9878 # you posted above is an incorrect part number. PM me for more details. Thanks! Joe
So I can’t figure out how to edit my original post. But I have found the left side manifold. Now just looking for a right side manifold casting number 2899879. With a November or December 69 or a early January 70. Date code.