350 Holley

[Jock]

Is anyone on here running a 350 Holley Carburettor on their Holden 6 cylinder motor?
If so - what results did the upgrade yield?

Some feedback on performance and economy would be good.

Cheers

Jock

A nice kit...



350 Holley Carburettor



Adaptor Plate for Holden Blue and Black 6 cylinder manifold

[BlackBedford]

G'day

The word on Commodore forums is that the XF Falcon Webber carby is the go. Better performance and economy.

[hammers_spanners]

JD Holley carbs are one step higher than a tap! Very basic but not economical at all, they are designed for all out performance. The 350cfm is too large for a Holden 6 and will always flatspot due to the 2 large butterflys opening at the same time causing a drop in air speed. A better option is the Weber of a Ford or a 4 barrel Holley ie 465 economaster. The 465 has 4 small butterflys 2x primary and 2x secondary.

[BlackBedford]

G'day
Just to keep hammering it in:
http://forums.justcommodores.com.au/vb-vk-holden-commodore-1978-1985/83631-350-holly.html

and when you decide on  weber:
http://holdenpaedia.oldholden.com/Weber_Conversion
http://forums.justcommodores.com.au/vb-vk-holden-commodore-1978-1985/17531-webber-installation.html
http://forums.justcommodores.com.au/vb-vk-holden-commodore-1978-1985/4509-202-webber-project.html
http://forums.justcommodores.com.au/vb-vk-holden-commodore-1978-1985/5925-weber-conversion.html
http://forum.streetcommodores.com.au/showthread.php?t=20070&highlight=weber

[Jock]

I bought a Weber at the wreckers earlier in the year and then I lost it?
I moved house and now I can't find the bugger!

Is there 2 sizes with the Weber? I read somewhere that you need the smaller one???
Is this a myth? Will any Weber from xe or xf ford do the trick?

I found the adaptor plates for the weber... Just need to know what size or type of weber
carb to use. Pretty sure its the 34 ADM model. Please confirm.

Jd

[Marky]

Hey Jock

I have the weber set up on my blue 202 adm34

Its a great carby easy to tune,great ecomony

Xe/xf have a different fuel miser one is needle n seed.... the other solid

I got mine running and after scouring lots of websites ...these carbys are popular with magna drivers too
found there were many different stories n successes with different jet sizes

I have the jet sizes written down somewhere ...

but i had mine rejetted and put on a dyno
it cost  $150 @ a performance engine specialist in NNSW

I had to cut the floor a lil to fit new carby
12v + wire to power up electric choke

[Jock]

Marky,

If you could be so kind to have a look for those jet sizes I would appreciate it.
Let me know how you go.

Thanks mate.

Jock

[ben]

hey marky was it a noticeable power and economy  difference when you did you the conversion?

cheers
ben

[Tweaker]

The TD cortina's also had webber carbs. I know the 4 cylinder did anyhow, so I wouldn't be supprised if the 6 did also. And probably not just in the TD either