Holley Spreadbore
#1
Holley Spreadbore
i found a old holley spreadbore that my old man used to run on his chevelle with a 307 before he put a big block in it. i believe its around a 80-82. i was thinking about rebuilding it and throwing it on my z28 when im rebuilding my qjet. Are there any inherent design flaws with these? how well do they run when properly tuned?
#2
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Holley Spreadbore
All of Holley's spreadbore carbs are low-performance replacements for emissions applications.
#3
Re: Holley Spreadbore
Holley stopped production of their spreadbores a long time ago with good reason. Someone may want it for retro, but the smart move is to get rid of it even if it is free and get a Q-Jet or even a square bore Holley or Edelbrock. BEST is properly tuned Q-Jet!!!
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: Holley Spreadbore
http://www.summitracing.com/search/D...w/?Ns=Rank|Asc
Filtered for Holley, spreadbore, and new.
#5
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Car: 1982 SC/1984 Z28
Engine: 305 4BBL/305 4BBL H.O.
Transmission: 700R4/700R4
Axle/Gears: 4th Gen 3.23 Posi/3.73 10 Bolt
Re: Holley Spreadbore
Yeah, i had one of those. Mine was the 4165 (Double Pumper). In rebuilding it, i didn't really see alot of differences in it and a standard Square Bore. The only thing i can see that makes it different is the base plate. In fact, the rebuild kit looked just the same with the exception of the main body gaskets. I didn't run the carb though. a friend of mine scooped it up after i Rebuilt it. He's gonna use it on his 4x4.
#6
Re: Holley Spreadbore
Really?
http://www.summitracing.com/search/Department/Air-Fuel-Delivery/Brand/Holley/Section/Carburetors-Accessories/Part-Type/Carburetors/Carburetor-Flange/Spread-bore/New-or-Remanufactured/New/?Ns=Rank|Asc
Filtered for Holley, spreadbore, and new.
http://www.summitracing.com/search/Department/Air-Fuel-Delivery/Brand/Holley/Section/Carburetors-Accessories/Part-Type/Carburetors/Carburetor-Flange/Spread-bore/New-or-Remanufactured/New/?Ns=Rank|Asc
Filtered for Holley, spreadbore, and new.
They are still junk
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