RE: some observations

[Barrie Robinson <barrier@bconnex.net>]

I have been told that the Edelbrock is a Weber but sold under Edelbrock in 
the US because Weber is not as well known as in Europe - The Weber logo can 
be seen in the casting on mine and I always call it a Weber - but then I am 
carb snob.


At 12:43 PM 12/6/2003, Jim Stuart wrote:
> Don't know about your speed shop guy, but the first problem that he, & your
> dyno friend did not identify was that you installed too big a carb, a common
> problem within the hot rod fraternity. A 500 cfm Edelbrock or Carter would
> have been almost perfect for your engine. The 600 is really too large,
> better suited to a 350 Chevy.
>
> I am running a 500 cfm Edelbrock on 302 CI of Buick with much larger valves
> & a heavily ported set of heads & it gives all the performance you could
> hope for. Easy starting, good idle, & plenty of go.
>
> Bigger carbs reduce air/fuel velocity & performance. Rule of thumb is 100
> cfm per liter of displacement. Of course this is a starting point, affected
> by compression, heads, cam, etc.
>
>
> Jim Stuart
>
>
>
>
> -----Original Message-----
> From: owner-mgb-v8@autox.team.net [mailto:owner-mgb-v8@autox.team.net]On
> Behalf Of T. S. White
> Sent: Saturday, December 06, 2003 10:00 AM
> To: James Nazarian
> Cc: v8
> Subject: Re: some observations
>
>
> I thought I would toss in my experience on the carb and HTOB.  I have a
> 289 in my TR3A.  At the suggestion of a friend and a dyno tuner I
> installed an Edlebroch AFB 600 CFM.  I then had the engine dynotuned.
> The result was entirely disappointing.  The carbs only redeeming quality
> was that it idled well.  At a car show I spoke to a speed shop guy that
> divuldged that the AFB has a generic fuel curve that doesn't fit any
> engine well.  I have since switched to a Holley Street Avenger with much
> better performance characteristics.
>
> I called Howe before installing my HTOB.  The technitian there actually
> recommended setting it up with a little slack.
> --
>         Best Regards,
>         Tom
Regards
Barrie

Barrie Robinson
barrier@bconnex.net 
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