ZENITH-STROMBERG MANIFOLD[VASCL:A16C7DD81D2]

[Bob Sovatsky <rsovatsk@suffolk.lib.ny.us>]

I am searching various sources for the combined intake/exhaust manifold 
for the Z-S carb.  I noticed that there appears to be two different part 
numbers for this manifold, CAM 1313 and CAM 1314.  Does anyone know the 
difference between these two manifolds?  Thank you.

Bob
1977 MGB