Designed and calibrated for optimum marine performance in small-block V8 engines with a variety of manifolds that include Edelbrock Performer, Performer RPM, RPM Air-Gap, Torker II and other brands of similar design. Also ideal for Chevy 4.3L V6 engines with a Performer manifold (see Manifolds) and Calibration Kit #1485. Comes with: Metering Jets - Primary .098, Secondary .101; Metering Rods - .068 x .047; Step-Up Spring - orange (5" Hg). Edelbrock Performer Series Marine Carb 1409 600 CFM - Square-Flange - Electric Choke - w/o EGR - Includes Prim. Jet-0.098 - Secondary Jet-0.101 - Metering Rod-0.068x0.047 - Step-Up SpringComply w/U.S. Coast Guard Safety StandardsTeflon Coated Shafts/Pump Arm For Max. ProtectionPit Stop USAoffers Edelbrock Performer Series Marine Carb 1409 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 Carburetors.