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Author Topic:   Carb opinions
Kyle
Journeyman

Posts: 64
From: Sumner, WA USA
Registered: Dec 2001

posted 12-06-2001 11:34 AM     Click Here to See the Profile for Kyle   Click Here to Email Kyle     Edit/Delete Message   Reply w/Quote
Hello all. I was just wondering if anyone has an opinion about the holley 4010 series carbs. A buddy of mine picked up one (650cfm) to replace the carter on my race motor (302) but I don't know if that is a good carb or if I should go and find a 650 DP. Anyone have any expierence with these carbs- good, bad, or otherwise?

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cpmaverick
Moderator

Posts: 1256
From: Auburn, AL.
Registered: Jan 2000

posted 12-06-2001 11:53 AM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
They are good carbs, but for racing it will not be close to a DP as far as performance. It probably won't net an improvement over you carter (unless you really needed the extra CFM).

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clevelandstyle
Gearhead

Posts: 178
From: Connersville, IN
Registered: Jul 2001

posted 12-06-2001 12:23 PM     Click Here to See the Profile for clevelandstyle     Edit/Delete Message   Reply w/Quote
Opinion: I'd pick a Holley over a Carter any day.

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cpmaverick
Moderator

Posts: 1256
From: Auburn, AL.
Registered: Jan 2000

posted 12-06-2001 01:08 PM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
It's hardly a normal Holley, If I am correctly identifying it it resembles an Autolite/Motorcraft carb right?

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65_302
Journeyman

Posts: 45
From: Bixby, OK
Registered: Jul 2001

posted 12-06-2001 01:08 PM     Click Here to See the Profile for 65_302   Click Here to Email 65_302     Edit/Delete Message   Reply w/Quote
We swapped a 600 Edlebrock for a 650 Holley dp on my sons 302 crate motor and picked up one whole second on his et (15.1 to 14.1). It was really easy to set up by following the Holley manual. We just recently got the electric choke working and it is real nice to start now (they come with manual choke, we bought the elec kit). The performance is exciting. No hesitation off idle. The street mileage isn't bad either, if you keep the secondaries closed. We have become instant Holley fans. Go for the 650 dp.

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 12-06-2001 04:10 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
The same guy who designed the Autolite 4100 series, also designed the Holley 4010. They were built as double pumper and vaccum secondary units. I like them a lot and think that you couldn't get a better S&S carb. It is unfortunate that they never really caught on and were discontinued. It is a far better unit then any Jimmy Carter carb ever built.

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Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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cpmaverick
Moderator

Posts: 1256
From: Auburn, AL.
Registered: Jan 2000

posted 12-06-2001 04:13 PM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
Wow, I didn't realize they had double pumper versions of that carb.

They look very easy to work on, like the Autolites.

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Kyle
Journeyman

Posts: 64
From: Sumner, WA USA
Registered: Dec 2001

posted 12-06-2001 04:30 PM     Click Here to See the Profile for Kyle   Click Here to Email Kyle     Edit/Delete Message   Reply w/Quote
They do look easier to work on. How good would these carbs be for drag racing, though? I don't know what kind of stuff you can get for these. I don't think you need jet extensions, since the jets look to be in the bottom of the float bowl, and there are no metering blocks to mess with. I did read that they do come stock with annular boosters. Do these facts make it easier to work with, or make it that much tougher to get good drag racing performance out of them?

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Kyle Laramore

63 Fairlane
66 Mustang coupe
73 Mach 1

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 12-06-2001 04:42 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
As I had stated earlier, they resemble the 4100 Autolite for a reason. They are indeed very esy to work on. They were designed as a low cost performance alterative to the 4150 and 4160 series. They never caught on much because you do not have the versatility of changine metering blocks and other common Holley modifications. Also they didn't look as "cool" as the regular dual feed 4150. (not my oppinion) They work great on mild to medium applications. I wish that I had a few hundred of them laying around.

------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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