you mention the word "impressive" as to
power gains for $3,500 but....no specific
numbers. And I don't have the foggiest
what this head will do for one in terms of
$3,500 sounds about right for a Moss
MiniMania (or Hans Pedersen) blower kit.
It woud be nice to see a factual comparison
of the two methods.
Perhaps the answer
to your question regarding the scaricity of
Xflow's for the Series A lies within.
Someone once told me the only difference
between a BDA and a Spridget motor was the BDA's cylinder head and that same was
easily installed on a large bore Series A.
I am totally unfamiliar with the foregoing.
Hopefully there are other
listers who "know" and may contribute for
a gain in list general knowledge. :)