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Butler Performance Stage 1 Quadrajet Carburetor, 800 CFM, BPI-335007

Pontiac Quadrajet Carburetor Stage 1- Built by leading carb builder. Engine tested and ready to install. Great replacement for stock and mostly stock applications
Availability: DISCONTINUED *SEE JET-32101


The bodies used are later model with later model linkage and electric choke. To use in older applications you may need to adapt or upgrade your throttle cable.

Front Fuel Inlet
Select highest quality cores for best performance and reliability
Strip to bare metal, inspect for defects, then apply dichromate coating for a brilliant gold finish.
Strip and cadmium plate all hardware, including throttle shafts, linkage, levers, spring and screws.
Surface baseplate for flatness and glassbead for bright silver finish.
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.
Install bushings in baseplate to eliminate any potential vacuum leaks at primary throttle shaft.
Assembled using the highest quality components, including:
New jets and metering rods.
High flow .130" needle and seat assembly.
Nitrophyl solid composite float that can't crack or sink.
Premium quality gaskets
High capacity accelerator pump featuring materials that are resistant to alcohol and other additives commonly found in today's fuel
New electric choke for cold starting and driveability.
New choke pull-off for clean, smooth warm-ups.
Built by SMI for Butler Performance with 1 YR warranty all parts and labor

All SMI built carbs are tested on an engine and pre-tuned, ready for you to final tune to your application

Built for Pontiac Engines sizes 350, 400 & 455*

The throttle bracket supplied with the carb. is set up for the 2004R transmission. Therefore, if you have a T350 (the 400 does not use a cable) it is simply a matter of re-adjusting your kick down cable.

Shipping Information

  • Item Requires Shipping
  • 14.0 lbs.