I'd go with the 40's for that application. You can still run a large enough
venturi to feed a 1600 easily and not have a huge change in cross-section as
it goes through from the carb throat to the venturi and into the manifold.
Gordon Glasgow
Renton, WA
www.gordon-glasgow.org
> -----Original Message-----
> From: owner-datsun-roadsters@autox.team.net
> [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Steve Guthrie
> Sent: Monday, January 27, 2003 4:58 PM
> To: datsun-roadsters@autox.team.net
> Subject: Weber carbs
>
>
> I am thinking about putting Webers on my stroked 1600. What size is
> recommended? I have seen both 40mm and 45mm written about, but
> which is best?
> I will be installing a big cam, electronic distributor, lightened
> flywheel,
> .020 over pistons, big valves in head, etc.
>
> Thanks,
>
> Steve Guthrie, '69 1600 (completely dissasembled)
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