670 CFM 4-Barrel Street Avenger Carburettor Vacuum Secondary. ElectricChoke.

No Trouble quick change vacuum secondaries
Vacuumsecondaries 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 forserious street enthusiasts.
Calibrated for monster low-end torque, awesome acceleration, & unmatched top-end horsepower.
Bolton & go design
Electric choke