Those observations match exactly with my experience with my 302 in my MG,
the Holley was a MONSTER at the track or if wanting to play around, a on/off
switch when you got in it hard. but it rumbled at cruise and drank fuel
like a battleship. The Carter, bolted on in stock set-up, idled like a baby
and cruised smooth as silk. Also gave me a 7+mpg increase.. BUT it did not
have the punch of the Holley when I took it to the track, in fact I would
say it cost me a good full second in the 1/4mile and over 10mph+ at the big
end of the track. That said it was still a strong car and too much fun to
drive.
Larry
-----Original Message-----
From: owner-mgb-v8@autox.team.net [mailto:owner-mgb-v8@autox.team.net]On
Behalf Of Keith Grider
Sent: Saturday, December 06, 2003 10:15 AM
To: T. S. White
Cc: James Nazarian; v8
Subject: Re: some observations
All speed shop guys 'divulge' that an AFB is inferior to a Holley. That
has not been my experience. An AFB does have to be properly tuned,
though, because it has more flexibility than a Holley. Tuning a Holley
is easier because there is less to tune. Holleys, as delivered, have a
power valve which results in more of a switch type of operation. The
Carter has better cruise and off idle performance for driving around
town. In a 1/4 mile setting, I'd probably go for a Holley, but for a
driver, I opt for a carter. There is a kit that used to be available
which adapted a weber metering assembly on a Holley. I know nothing
other than it used to be available. A Ford buddy swears that it is much
better off idle than a standard Holley, but I do not know.
Fuel injection is always, better, though ;-)
Keith
T. S. White wrote:
> 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.
///
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