Holley is proud to announce the all-new Marine Avenger carburetor. Available in 550, 670, and 770 CFM configurations, these Coast Guard-approved Marine Avenger carburetors bring the long-established performance and durability of aluminum Street Avenger carbs to the water. Each one is calibrated specifically to meet the unique engine loads required by marine applications and feature marine J-style vent tubes. Marine Avenger carburetors feature a dual-metering-block system and four-corner idle adjustment for precision tuning. Backed by a lifetime limited warranty, they come with an anodized Hard Core Gray™ finish to guard against the corrosive effects of freshwater and salt water environments. They also feature PTFE-coated throttle shafts to further protect your valuable investment. All Marine Avenger carburetors are J1223 Marine Standard-certified to exceed the stringent specifications of the U.S. Coast Guard.