Performer Series, 1405 Carb, 600cfm, Sq Flange, MANUAL Choke, NO EGR, Incl Prim Jet-0.100, Sec Jet-0.095, Metering Rod-0.070x0.047, Street/Hi Performance Both Timed and Full Vacuum Ports Burnished Aluminum Can Add Electric Choke PN[1478] Easy Tuning with 2-Piece Design GM/AMC-Style Throttle Linkage Includes PCV Outlet Smooth Secondary Transition Performer Series, 1406 Carb, 600cfm, Sq Flange, ELECTRIC Choke, NO EGR, Incl. Pri. Jet-.098, Sec. Jet-.095, Metering Rd-.075x.047, Street/Hi Performance Usage Both Timed and Full Vacuum Ports Burnished Aluminum Easy Tuning with 2-Piece Design Electric Choke Installed from Factory GM/AMC-Style Throttle Linkage Includes PCV Outlet Smooth Secondary Transition