SELECTIONS: Products : Street Performance : Rochester Quadrajet : 750CFM Electronic Quadrajet 4BBL

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Product Name:
Rochester 4BBL Electronic Quadrajet 750CFM


Our Price: $574.00


  • Fits 1981 to 1987 Chevrolet Passenger Cars
  • All new electronic's (Mixture Control Solenoid, Throttle Position Sensor, Electric Choke)
  • Main jet and metering rods selected for clean cruise mixture and strong part throttle response and acceleration.
  • Secondary metering rods and hanger selected and high speed air bleeds resized for maxium full throttle horsepower and torque.
  • All circuits will be modified and tuned to match the specifications of your engine combination, Including:
  • Apply epoxy to main body casting plug to eliminate common "leak down" problem associated with Quadrajets.
  • Choke pull-off modified for faster secondary air valve response.
  • CRO(channel restriction orifice) resized for crisp off-idle and part throttle response.
  • High capacity accelerator pump featuring materials that are resistant to alcohol and other additive commonly found in today's fuel
  • Select highest quality cores for best performance and reliability
  • Idle down tube(idle jet) and idle air bleed resized for smooth idle quality with performance camshafts.
  • Idle, transition, main, and high speed circuits modified to provided optimum fuel curve for YOUR engine
  • Install bushings in baseplate to eliminate any potential vacuum leaks at primary throttle shaft.
  • Intended for moderately modified street performance vehicles.
  • Strip and cadmium plate all hardware, including throttle shafts, linkage, levers, spring and screws.
  • Strip to bare metal, inspect for defects, then apply dichromate coating for brilliant gold finish.
  • Assembled using the highest quality components, including:
  • Surface baseplate for flatness and glassbead for bright silver finish.
  • New choke pull-off for clean, smooth warm-ups.
  • High flow .130" needle and seat for consistent float bowl fuel volume
  • New electric choke for cold starting and driveability.
  • Nitrophyl solid composite float that can't crack or sink.
  • Premium quality gaskets
  • 1 YR warranty all parts and labor