570 CFM 4-Barrel Street Avenger System Carburettor Vacuum Secondaries, Electronic Choke

Square flange bolt pattern. Performance calibrated. The ultimate vacuum secondary street performance upgrade.

No Trouble quick change vacuum secondaries
Vacuum secondaries allow use on wide variety of vehicles
Dual feed fuel inlet
1 timed (spark) port, 2 full vacuum, and 1 PCV port
Ford A/T kickdown, does not work with A.O.D. transmissions
Intended for serious street enthusiasts. Calibrated for monster low-end torque, awesome acceleration, & unmatched top-end horsepower. Bolt on & go design
Electric choke