Carb ID

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bigcountry78

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Location
Hickory, North Carolina
First Name
James
Truck Year
1978
Truck Model
K10 Custom Deluxe
Engine Size
350
I found this at my dads the other day and I want to sell it, bu . Don't know exactly what it is. I'm sure someone on here has seen one before. I know its a holley dual feed but that's about it. I can't find anything like a model number or CFM. I know the pics aren't the greatest but my cell phone is all I've got. If you need s close up of something justlet me know.

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Quadrajet Power

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Location
Waring, Tx
First Name
Mark
Truck Year
1989
Truck Model
K5 Blazer
Engine Size
350
The code number (4 digits) will be on the front of the air horn/choke. In your 5th picture down from top, I can see the code but can't read what it is.

It is a vacuum secondary carb.
 

Qwk

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Location
Cincy
First Name
Craig
Truck Year
87
Truck Model
C10
Engine Size
5.7/T56
Im guessing, #3310-4, which would be a 750 Vacumm secondary. But why are the bowl vents plugged? You will need to remove all that white stuff in the vents.
 

bigcountry78

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Location
Hickory, North Carolina
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James
Truck Year
1978
Truck Model
K10 Custom Deluxe
Engine Size
350
Yep, #3310-4 is it. There is also 2966 printed below that. The white stuff is from a dirt dauber, its been sitting in storage for a long time. Thanks guys. So what would this sell for new, and what's its value now? Would this work well on an otherwise stock 350, or would I be better off keeping my quadrajet.
 

DoubleDingo

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Location
Right where I am
First Name
Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350
I'm going to say keep it q-jet. I don't know the value of an old Holley with a wasp nest in it:)
 

Quadrajet Power

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Location
Waring, Tx
First Name
Mark
Truck Year
1989
Truck Model
K5 Blazer
Engine Size
350
Yea, keep your quadrajet. Better for performance and fuel economy as long as it is set up right for you.

Your holley, in the condition it is in, might sell for about $50.
 

bigcountry78

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Location
Hickory, North Carolina
First Name
James
Truck Year
1978
Truck Model
K10 Custom Deluxe
Engine Size
350
OK thanks. I'll clean the holes out and just sell it under the condition that it needs to be cleaned and possibly rebuilt before being used.
 

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