Designed and calibrated for optimum street performance in small-block and big-block engines with Performer RPM, RPM Air-Gap and Torker II manifolds and with Performer manifolds on large cubic-inch engines. Includes both timed and full vacuum ports for ignition advance. Electric choke #1478 can be added if needed. Comes with: Metering Jets - Primary .113, Secondary .107; Metering Rods - .071 x .047; Step-Up Spring - orange (5" Hg). Edelbrock Reconditioned Performer Series Carb 9907 750 CFM - Square Flange Man Choke - w/o EGR - Includes Primary Jet-0.113 - Secondary Jet-0.107 - Mtrng Rd-0.071x0.047 - Dual/Small Single Pln Int - St/Hi PerfBurnished AluminumGM/AMC-Style Throttle LinkageElectric Choke Installed from FactoryEasy Tuning with 2-Piece DesignSmooth Secondary TransitionBoth Timed and Full Vacuum PortsIncludes PCV OutletApplications include: 300, 330, 440, 442, 880, 98, Aspen, B100 Van, B150 Van, B200 Van, B250 Van, B300 Van, B350 Van, Barracuda, Bel Air, Belvedere, Belvedere Ii, Biscayne, Blazer, Blazer K5 Pit Stop USAoffers Edelbrock Reconditioned Performer Series Carb 9907 at low everyday prices. Be sure to check out all of the products from Edelbrock including Edelbrock Fuel System and Intake Parts and Accessories, Edelbrock Carburetors, Edelbrock Gasoline Carburetors, Edelbrock Carburetors, Edelbrock Performer Remanufactured Carburetors.