Description
Mechanical Secondary-Black-4150
Features:
- Aluminum construction for weight savings and long lasting good looks in purple or black
- Optimized race calibrations for outstanding throttle response
- Contoured venturi inlet offers balanced airflow for increased horsepower
- Screw in air bleeds for precision tuning capabilities
- Four corner idle for precise idle control
- Mechanical secondaries for awesome tire turning performance
- The billet metering blocks feature improved durability over cast blocks, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
- Available in 650, 750, and 850 CFM versions
- Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!