Accelerator pump clip?
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
A Holley O-6210 is a 650 cfm spread bore.
https://www.holley.com/products/fuel...t/parts/0-6210
EDIT: Oops! that one is mechanical secondaries and a divorced choke, my bad.
The vacuum secondary/electric choke 650 spread bore is O-9895
https://www.holley.com/products/fuel...t/parts/0-6210
EDIT: Oops! that one is mechanical secondaries and a divorced choke, my bad.
The vacuum secondary/electric choke 650 spread bore is O-9895
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
That was a 1980's era 2bbl carb Motorcraft designed mainly to meet emissions standards. It had a venturi that was controled by a vacuum diaphragm that pretty much deteriorated right before your eyes, and the venturi slide would constantly seize up.
It was used mainly on full sized cars and Lincolns.
It was used mainly on full sized cars and Lincolns.
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
Actually I have rebuilt more 7200VV's than I can count, and was in fact one of the last Automotive carbs I rebuilt. There is nothing inherently wrong with the VV it is just a fiddly carb to rebuild but it really is no worse to do than the later Solex's, Zenith's Peirburg's, etc.
When the VV was set up correctly it delivered Fuel Injection level economy and good performance it just needed to be set up/adjusted once a year to maintain optimum performance. It was a decent carb overall, it's failing was that many of the ham fisted Domestic techs had little to no experience with precision built fuel metering devices. This even more so with Ford where most Ford carbs could digest gravel and still function fine.
The VV did what it set out to do and did it well.
Unlike the 4350, that was just a bad design from the word go, it would never operate correctly unless you re-engineered the whole fuel air system and most of the Carb.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
You're correct about them being "fiddly".
Also, the parts diagram I posted was one that I scanned from a rebuild kit. Here's the one from the Ford parts catalog.
Cargo Master
Joined: Jul 2005
Posts: 2,309
Likes: 364
From: Kansas
A Holley O-6210 is a 650 cfm spread bore.
https://www.holley.com/products/fuel...t/parts/0-6210
EDIT: Oops! that one is mechanical secondaries and a divorced choke, my bad.
The vacuum secondary/electric choke 650 spread bore is O-9895
https://www.holley.com/products/fuel...t/parts/0-6210
EDIT: Oops! that one is mechanical secondaries and a divorced choke, my bad.
The vacuum secondary/electric choke 650 spread bore is O-9895
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
the 4350 uses the quadrajet bolt pattern but the venturi's are not in the same location. See below
If your intake looks like this. See blow for carb mounting you will need an adapter plate.
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Senior User
Joined: Oct 2016
Posts: 401
Likes: 3
From: Rockville, IN Temporarily
We've not had much luck with Holley carbs at our shop the past few years so we've switch solely to installing Edelbrock carbs. I have one on my 460 with the edelbrock performer intake. Runs smooth, Exhaust is white at the tips and starts instantly hot or cold.
Thread Starter
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Posting Guru
Joined: Mar 2016
Posts: 1,534
Likes: 1
From: Missoula
Another silly question...if my 460 is from '77, that means the ignition timing is screwed from the factory for emissions, right? I need a new distributor anyway, so is it worth it to get a recurve one vs the standards parts store one? Do I also need to get a straight up timing chain set?
Mountain Pass
Joined: Mar 2022
Posts: 114
Likes: 11
From: Mendocino county Califor
If you are not in a hurry, I think I have a complete Motorcraft 4350 carb that is yours for free. It should fin in a flat rate box. I am at work till Saturday night and could mail it out on Monday. It was from my 76 F250 w/ a 460.
If it has the parts you need, it's yours.
If it has the parts you need, it's yours.
Logistics Pro
Joined: Jun 2004
Posts: 4,743
Likes: 3,353
From: South Central Utah
The problem with them is there were very few people that were properly trained to rebuild them and they never bought the proper special tool kit to get them dialed in properly.
Loved them and rebuilt 100s of them.
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