Hello,
I have read Kevin's remarks about the carburettors and I would like to add
that the 'large' Edelbrock 1406 (600cfm) that I tried on my 409 was probably
a bit of an excess for the engine. As my Carter was beyond repair I bought a
1403 (500cfm, similar to the old Carter 3131/3249) and having enlarged the
holes for the secondary throttle valves on the intake manifold (pls see
http://www.stefanopasini.it/Bristol_...nifold_Mod.htm
for details) it now seems to work pretty well. The 1403 is cheap (I bought
it for $200), its linkages are not as different from those of the Carters as
the 1406 are, and has the advantage of an auto electric choke as well.
Cheers
Stefano