Help Identifying a Carb
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Joined: Mar 2001
Posts: 3,245
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Help Identifying a Carb
Its a Holley, the list number is 6210-3
I looked it up and it came up as a 650 cfm Model 4165 carb. Is this a double pumper? Will a proform mainbody work in this carb? Any help would be appreciated. Thanks,
Seth
I looked it up and it came up as a 650 cfm Model 4165 carb. Is this a double pumper? Will a proform mainbody work in this carb? Any help would be appreciated. Thanks,
Seth
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
It's a 650 CFM manual secondary double-pumper, but it's a spreadbore. It was originally designed as a direct bolt-on replacement for Q-Jets in the late 60s on 327, 396 and 427 motors; -3 is the current version I think.
I personally rather like that carb, I've had alot of cars over the years that have run real good with them, and gotten as good gas mileage as a Q-Jet would have (or better). I ran its big brother 6211 (800 CFM) on a 400 in my 83 for many years, with excellent results.
They're a great carb on a mild engine of almost any size for street use. They may not give quite as much power as a square carb, but they are much more driveable and get far better gas mileage than square carbs usually do.
The Proform main body will not work; being a spreadbore it has numerous internal differences from square carbs, including (duh) the main body.
I personally rather like that carb, I've had alot of cars over the years that have run real good with them, and gotten as good gas mileage as a Q-Jet would have (or better). I ran its big brother 6211 (800 CFM) on a 400 in my 83 for many years, with excellent results.
They're a great carb on a mild engine of almost any size for street use. They may not give quite as much power as a square carb, but they are much more driveable and get far better gas mileage than square carbs usually do.
The Proform main body will not work; being a spreadbore it has numerous internal differences from square carbs, including (duh) the main body.
Thread Starter
Supreme Member
iTrader: (1)
Joined: Mar 2001
Posts: 3,245
Likes: 1
From: Medford, Oregon
Car: 1989 Iroc Z L98
Thanks for the help guys! So, what should I do to this carb before I throw it back on? It was on a Nova with a 327 that ran 12.6's before so I am sure its got some performance in it
I was thinking of taking it somewhere to have them rebuild it. Also, is it possible to refinish the outside of a carb, because this carb has seen better days lol. Thanks,
Seth
I was thinking of taking it somewhere to have them rebuild it. Also, is it possible to refinish the outside of a carb, because this carb has seen better days lol. Thanks,
Seth
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Just rebuild it yourself. It's not rocket science, it's just a Holley carb.
You can take it to a plating place after it's cleaned up, and see what they can do. I believe they can sort of restore the original gold-like color without too much trouble.
You can take it to a plating place after it's cleaned up, and see what they can do. I believe they can sort of restore the original gold-like color without too much trouble.
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