Holley
Thread Starter
Intermediate
Joined: Sep 2012
Posts: 46
Likes: 0
Holley
Can anyone help identify this Holley Carb. It was give to me today.
I can't find any numbers but the one pictured. Is there someone I can send this to be refurbished.
http://i322.photobucket.com/albums/n...529_191546.jpg
http://i322.photobucket.com/albums/n...529_191647.jpg
http://i322.photobucket.com/albums/n...529_191641.jpg
I can't find any numbers but the one pictured. Is there someone I can send this to be refurbished.
http://i322.photobucket.com/albums/n...529_191546.jpg
http://i322.photobucket.com/albums/n...529_191647.jpg
http://i322.photobucket.com/albums/n...529_191641.jpg
Drifting
Joined: Dec 2004
Posts: 1,714
Likes: 42
From: Austin Texas
check out this page.
https://www.holley.com/TechService/ListNumber.asp
If you find it, you can go here to see the original specs.
https://www.holley.com/TechService/ListNumber.asp
If you find it, you can go here to see the original specs.
Last edited by johnt365; May 29, 2014 at 08:36 PM.
Racer
Joined: Feb 2009
Posts: 273
Likes: 11
From: Algona, WA
4776-2 600cfm
Second series 600CFM Model 4150 2 idle circuit with NO power valve protection (check valve), dual feed missing the original Mechanical choke. Early 80's. The smallest of the Holley list #'s 4776-4781 add 50cfm for each number increase.
These were the bread and butter of the early duel feed, double pumpers.
Dave
These were the bread and butter of the early duel feed, double pumpers.
Dave
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Yeah, man, choke is completely missing!
http://www.summitracing.com/parts/hly-45-224/overview/
http://www.summitracing.com/parts/hly-45-458/overview/
http://www.summitracing.com/parts/hly-45-457/overview/
Just order a rebuild kit, and rebuild it. Look up the specs on Holley's website and try to order the parts to bring it back to stock, who knows what other horrible things have been done to this poor carb.
Scott
http://www.summitracing.com/parts/hly-45-224/overview/
http://www.summitracing.com/parts/hly-45-458/overview/
http://www.summitracing.com/parts/hly-45-457/overview/
Just order a rebuild kit, and rebuild it. Look up the specs on Holley's website and try to order the parts to bring it back to stock, who knows what other horrible things have been done to this poor carb.
Scott
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Le Mans Master
Joined: Oct 2010
Posts: 6,922
Likes: 839
From: melbourne florida
2023 C3 of the Year Finalist - Modified
never found a missing choke to be an issue on a double pumper. if you have it set up right the anti- backfire check isn't an issue either, but you have a good carb none the less 
Burning Brakes
Joined: Mar 2006
Posts: 1,036
Likes: 2
From: Huntingburg Indiana
Yeah, most Holleys I've had started easily without a choke. The drawback is not having a fast idle.
Drifting
Joined: Mar 2011
Posts: 1,347
Likes: 121
From: Kernersville NC
I have a 750 with no choke or choke tower. A couple pumps and it will start on the coldest day and your right foot makes a great fast idle. Mine was a wreck thanks to some goober that had no idea what he was doing. I went back to 750 cfm factory specs and it runs great.