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Fresh rebuild | 4 Barrel Q-Jet | Stage 2 performance build

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Old Feb 2, 2021 | 11:21 AM
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Fresh rebuild | 4 Barrel Q-Jet | Stage 2 performance build

Selling this freshly rebuilt and tested 4 Barrel Q-Jet. I went EFI so no longer need for my build. Carb # 7041251
Asking $300.00 - shipped to your door anywhere in the Continental US, PayPal only please.

Specifics of the rebuild were completed by National Carburetor and are as follows (Taken from their website):
  • Idle down tube(idle jet) and idle air bleed resized for smooth idle quality with performance camshafts.
  • CRO(channel restriction orifice) resized for crisp off-idle and part throttle response.
  • Main jet and metering rods selected for clean cruise mixture and strong part throttle response and acceleration.
  • Proper metering rod power piston spring selected to match engine vacuum characteristics
  • Secondary metering rods and hanger selected and high speed air bleeds resized for maximum full throttle horsepower and torque.
  • Install bushings in baseplate to eliminate any potential vacuum leaks at primary throttle shaft.
  • Install APT (ADUSTABLE PART THROTTLE) to allow adjustment of part throttle and cruise speed (steady throttle, 1800-4000 rpm) air/fuel mixture in seconds without any disassembly, tuning can be done while engine is running!
  • Apply epoxy to main body casting plug to eliminate common "leak down" problem associated with Quadrajets.
  • New jets and metering rods.
  • High capacity accelerator pump featuring materials that are resistant to alcohol and other additive commonly found in today's fuel
  • Nitrophyl solid composite float that can't crack or sink.
  • High flow .130" needle and seat assembly







Last edited by Brians1; Feb 9, 2021 at 06:14 AM.
Old Feb 2, 2021 | 04:01 PM
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Updating listing to include Quadra jet tuning kit that I forgot to put in with the original post and yes it comes with the carburetor at the current asking price




Last edited by Brians1; Feb 2, 2021 at 04:04 PM.
Old Feb 3, 2021 | 06:04 AM
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Price lowered - wanna get this sold. Price updated in Original post
Old Feb 5, 2021 | 04:52 AM
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Price drop - updated in original thread.
Old Feb 5, 2021 | 06:02 AM
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From: Oldsmolandia
Do you know the final CFM rating? Thanks
Old Feb 5, 2021 | 06:20 AM
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Originally Posted by rallyredw31
do you know the final cfm rating? Thanks
750-800 cfm
Old Feb 8, 2021 | 08:19 AM
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This is my last pride drop, then its headed to eBay if no takers. Price updated in original Post.
Old Feb 8, 2021 | 09:16 AM
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Brian looking for a 1970 4bbl air breather
Old Feb 9, 2021 | 06:12 AM
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Originally Posted by BobPlouhar
Brian looking for a 1970 4bbl air breather
Sorry only have and selling what is listed in original thread. Price have been lowered - it includes shipping within the continental US only.
Old Feb 9, 2021 | 07:29 AM
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