Fordnatics List Archive

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Mail From: (email redacted) (Benjamin Levy)

I was recently speaking with someone who worked for FAV building
the original GT40s about Holley carbs. He mentioned that for GT40s
with the 289 engine, the chokes were secured in the open position
(the manual cable was ignored).
---Ben Levy FTP Software Inc. (email redacted)
- -----------------------------------------------------------------------
Member of the International Ameoba Society:
"United We Stand, Divided We Multiply"

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Mail From: Roland Dudley <(email redacted)>

> I was recently speaking with someone who worked for FAV building
> the original GT40s about Holley carbs. He mentioned that for GT40s
> with the 289 engine, the chokes were secured in the open position
> (the manual cable was ignored).
> ---Ben Levy FTP Software Inc. (email redacted)

That's the way the Holley was set up on my Cobra was when I bought in
'66.

Roland

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Mail From: (email redacted) (Peter Boggini)


> I was recently speaking with someone who worked for FAV building
>the original GT40s about Holley carbs. He mentioned that for GT40s
>with the 289 engine, the chokes were secured in the open position
>(the manual cable was ignored).
> ---Ben Levy FTP Software Inc. (email redacted)
>-----------------------------------------------------------------------
> Member of the International Ameoba Society:
> "United We Stand, Divided We Multiply"

I can throw in about two cents on this one. I'm running the Holley
remake of the carb used on the Shelby'ized 289's on an 87 5.0 with
289 heads and Weiand dual plane. Its a 725 CFM carb, the original was 715.
By all the books, its way too big, but it runs better than any other
Holley I've tried. Anyway, I've never been able to use the
choke. This bothered me at first because I thought I could get
better mileage if I could lean out the jets a bit. Well, it comes
stock with 68's in front and 78's in back. I tried 67's in the front,
it ran warmer, not much, but a little. I put the 68's back in, it ran
normal again. So, I figured it was running about right. Also, the
plugs look good when I take them out. Now, if I use the choke,
it takes off the line fine, but at about 1500 to 2000, it falls on its
face. The only thing I can think of is that since the choke is closed,
their is less air coming in the primaries for a given speed, but its moving
much faster. So, the secondaries are opening faster than normal. So, I
just don't use the choke. One interesting note is that Carter's and some
OEM carbs block out the secondaries while the choke is on, maybe for this
very reason.........


peterb

(email redacted)

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Mail From: (email redacted) (Dave Williams)


-> the original GT40s about Holley carbs. He mentioned that for GT40s
-> with the 289 engine, the chokes were secured in the open position

A GT40 with a Holley? Every one I've seen, in person or in photos, has
had Webers, except for one with a Tecalemit-Jackson fuel injection
retrofit.