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Old 09-11-2022, 06:01 PM
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njsteve njsteve is offline
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Default 7042274 Quadrajet Rebuilt by Cliff Ruggles

7042274 Quadrajet for 1972 400/455 with automatic. The 7042274 was originally the carb used on "high altitude" applications but this one is set up to run as a normally jetted carb for sea level with .073 jets, 42 primary metering rods and "DA" secondary rods.

It was completely refurbished by Cliff's High Performance at a cost of $367 at the time.

All the usual upgrades were done by Cliff such as rebuilding the throttle body with bronze bushings, recalibration, performance mods, upgrades for ethanol, and a running test prior to shipping. He also replaced the factory leaking bottom plugs with screw-in plugs

See the attached receipt for full specs.

It is natural grey finish because I didn't spring for the extra $125 for replating at the time due to time constraints.

I ran this carb on my Gramma's 1975 Firebird with both the 350 and the 455 in it and it ran great.

$375 plus shipping

Steve at nk15268@hotmail.com
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Last edited by njsteve; 09-11-2022 at 06:45 PM.
  #2  
Old 09-11-2022, 06:05 PM
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details:
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  #3  
Old 09-11-2022, 06:07 PM
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The Following User Says Thank You to njsteve For This Useful Post:
  #4  
Old 09-20-2022, 04:30 PM
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Price reduction: $300 plus shipping

It's a great running carb set up for today's gas.

  #5  
Old 09-21-2022, 01:46 PM
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Wonder how it would run on my 4-speed 455HO...

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Old 09-21-2022, 01:56 PM
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It ran well on my 70 455 with 6X-4 heads, auto in Gramma's 75 Firebird.

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Old 09-21-2022, 03:06 PM
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SOLD

Thanks PY

Moderators please move this to the SOLD section.

 

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