Martin,
You'd be better off, from a simplicity and performance standpoint, by
getting a good twin SU HS4 carb and manifold unit. The DGV downdraft is a
good replacement for the stock ZS 150, but you'll actually be able to
flow more air through the SUs, mainly due to the straight routing of
the SUs vs. the contorted air flow of the DGV sitting on top of the
Cannon manifold. As the old saying goes, been there done that. I had a
DGAV on my Spit for about 6 months and noticed only slight performance
improvement over the stock ZS 150. Plus, Joe Curto carries a rather
complete selection of needles for SU, which makes them easy to tune for
almost any engine.
Just thought you should know,
Charlie
> Which brings up another question. I have been wanting to upgrade the single
>Z-S
> on my Spit 1500 for some time ... and I would prefer to pick up some used twin
> SUšs for this. They seem to be more readily available, easier to rebuild,
>and cheaper to boot. I cannot say this is necessarily true for
the HS8Šs, but what
>
> Or should I just bite the bullet on a single Weber downdraft conversion and
>call it a day?
>
> Boy, you sure do ask alotta stupid questions, Mr. Feder. Whew.
>
> --
> Martin Secrest
> 74 Spitfire 1500
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