Carburetor for Performer 600 CFM 4-Barrel Square Bore AFB-style
Carburetor replacement for 600 CFM 4-barrel square-bore engines with AFB-style air valve secondary. Improves acceleration and drivability with two-step metering rods for smoother operation. Users note easy installation and solid performance
Highlights
- AFB-style square bore compatibility
- two-step metering rods for tuning
- improved drivability and acceleration
Pros
- two-step metering rods for smoother transitions
- easy installation
- improved acceleration and drivability
- non-adjustable secondary air valves for reliability
Cons
- fits a specific set of manifolds
- primary venturi bottom-feed design may require compatible components
- customer feedback limited to initial impressions
Best For
Features
- Two-step metering rods aid transition between circuits for smoother operation
- Non-adjustable secondary air valves with bottom-feed primary venturi booster for smoother acceleration
- Easily changed metering rods enable precise tuning without modifying core design
- Matches Performer 600 CFM 4-barrel square-bore AF B-style for various manifolds (Performer, RPM, Air-Gap, Torker II compatible)
- Suitable for Corvette, Silverado, Mustang, Mercury, GMC pickups with 4-barrel carburetor setup
