> It appears to me that the 1600 has a dedicated return loop for the heater
> line, and may not depend on the water flowing through the manifold into
the
> block at all (I don't even recall seeing water holes in the 1600 intake
> manifold.
>
> Gary C 1966 1600, 1968 2000 solex
>
Oh, yes, the 1600 does have a water jacket in the intake manifold. Just got
through installing new freeze plugs in mine. Also destroyed the cotter key
holding the shutoff valve together so now I'll have to drill it out, but
that's another story! Sounds like the Palomar run was fun.
Paul Bauman
Westminster, CA
67 1600
http://albums.photopoint.com/j/AlbumIndex?u=881168&a=6499541
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