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Old 07-28-2005, 00:01   #1 (permalink)
BradandBrooks
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Holley 4160 on my 351 Q

Do you have to plug the vacuum ports before setting the fast idle? (But why would you, as you have to gun the throttle to expose the nut under the choke, so it can't be running, can it???) I can't seem to set the damn thing!

Help is appreciated!

Thanks

Brad

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Old 07-28-2005, 12:01   #2 (permalink)
Jim Warman
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Re: Holley 4160 on my 351 Q

Yes, all the vacuum ports need to be capped.... otherwise fuel
emulsification can be disturbed. I don't recall having to gun the throttle
to reach the adjustment screw. With the motor off and the choke closed,
bring the screw up so that throttle plates are open slightly wider than the
base idle setting and work up from there.

Base idle speed and mixture must be set correctly before fast idle speed is
adjusted.

"BradandBrooks" <BradandBrooks@shaw.ca> wrote in message
news:2M_Fe.60709$s54.53737@pd7tw2no...
Do you have to plug the vacuum ports before setting the fast idle? (But why
would you, as you have to gun the throttle to expose the nut under the
choke, so it can't be running, can it???) I can't seem to set the damn
thing!

Help is appreciated!

Thanks

Brad


  Reply With Quote
Old 07-28-2005, 22:01   #3 (permalink)
BradandBrooks
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Posts: n/a
Re: Holley 4160 on my 351 Q

Thanks Jim. Just what I needed to know!

Brad

"Jim Warman" <mechanic@tenalpsulet.net> wrote in message
news:gJ9Ge.141370$HI.134309@edtnps84...
> Yes, all the vacuum ports need to be capped.... otherwise fuel
> emulsification can be disturbed. I don't recall having to gun the
> throttle
> to reach the adjustment screw. With the motor off and the choke closed,
> bring the screw up so that throttle plates are open slightly wider than
> the
> base idle setting and work up from there.
>
> Base idle speed and mixture must be set correctly before fast idle speed
> is
> adjusted.
>
> "BradandBrooks" <BradandBrooks@shaw.ca> wrote in message
> news:2M_Fe.60709$s54.53737@pd7tw2no...
> Do you have to plug the vacuum ports before setting the fast idle? (But
> why
> would you, as you have to gun the throttle to expose the nut under the
> choke, so it can't be running, can it???) I can't seem to set the damn
> thing!
>
> Help is appreciated!
>
> Thanks
>
> Brad
>
>



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