From owner-buick-rover-v8-archive@autox.team.net  Tue Sep 25 01:15:39 2007
From: James Bown <jaguarsandrail@hotmail.com>
To: <buick-rover-v8@autox.team.net>, <mgb-v8@autox.team.net>
Date: Tue, 25 Sep 2007 01:15:20 -0600
Subject: Weber (Edelbrock) 500 CFM jetting

From: jaguarsandrail@hotmail.comTo: buick-rover-v8@autox.net;
mgb-v8@autox.netSubject: Date: Mon, 24 Sep 2007 17:30:05 -0600


Hello knowledgeable Rover 3.5 L (Buick 215) V8 enthusiasts.  I have been
running a Holley 390 CFM carburetor since 1977. I have always been happy with
it. However, I did just purchase and install a Weber (Edelbrock) 500 CFM
4-barrel carburetor.  Straight out of the box it seems to run rich. I was
wondering what others are doing in terms of setting this carburetor up for use
on a Buick/Rover V8? My engine is basically stock. It has a JWR Offenhauser
Dual Port Intake Manifold, the cylinders are bored .030 oversize, and it has a
high output ignition coil. I am using a Carter 6 p.s.i electric fuel pump. But
otherwise it is as it came from the factory in 1962. Any and all ideas are
appreciated.Regards,Jim Bown

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From owner-buick-rover-v8-archive@autox.team.net  Tue Sep 25 15:58:27 2007
From: "Robert Milks" <robmilks@mchsi.com>
To: "'James Bown'" <jaguarsandrail@hotmail.com>
Date: Tue, 25 Sep 2007 17:59:22 -0400
Subject: RE: Weber (Edelbrock) 500 CFM jetting

James,

3.5L Buick in MGB 

Stock:
Main jets .086
Metering Rod .065

I started with:
Main Jets .080
Metering Rod .062
Too lean

Now:
Main Jets .083
Metering Rod .065 (stock)
Ref #11 in your Edelbrock book.
Power is 2 stages lean
Cruise is 2 stages lean
Happy with this set up.


Robert


-----Original Message-----
From: owner-mgb-v8@Autox.Team.Net [mailto:owner-mgb-v8@Autox.Team.Net] On
Behalf Of sgreen@eurobell.net
Sent: Tuesday, September 25, 2007 4:12 AM
To: James Bown
Cc: buick-rover-v8@autox.team.net; mgb-v8@autox.team.net
Subject: Re: Weber (Edelbrock) 500 CFM jetting

It will never run 100% as its a bit big for a 3.5L but rejeting it will 
fix this. It easy to do and you will only need to do the primerys to 
start with.
Simon
PS can not remember jet size sorry.

James Bown wrote:
> From: jaguarsandrail@hotmail.comTo: buick-rover-v8@autox.net;
> mgb-v8@autox.netSubject: Date: Mon, 24 Sep 2007 17:30:05 -0600
>
>
> Hello knowledgeable Rover 3.5 L (Buick 215) V8 enthusiasts.  I have been
> running a Holley 390 CFM carburetor since 1977. I have always been happy
with
> it. However, I did just purchase and install a Weber (Edelbrock) 500 CFM
> 4-barrel carburetor.  Straight out of the box it seems to run rich. I was
> wondering what others are doing in terms of setting this carburetor up for
use
> on a Buick/Rover V8? My engine is basically stock. It has a JWR
Offenhauser
> Dual Port Intake Manifold, the cylinders are bored .030 oversize, and it
has a
> high output ignition coil. I am using a Carter 6 p.s.i electric fuel pump.
But
> otherwise it is as it came from the factory in 1962. Any and all ideas are
> appreciated.Regards,Jim Bown

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