I have the correct carburetor for my 1934 VL, the M21, however I'm not sure about the intake manifold. The manual calls for an 1107-33 but the sizes listed indicate that I may have an 1107-36 or 1107-36A type. These are all Y type manifolds. Will any of these fit the M21 carburetor and 1934 VL cylinders? Secondly, what does an M51 carburetor fit?