https://www.holley.com/products/marine/marine_carburetors/ The new Marine Avengers are built to exceed the Coast Guard standards and are J1223 Marine Standard certified. So, if you are hitting the lake for an easy cruise or some high speed fun, the new Aluminum Marine Avengers will meet and exceed your performance demands! Building on the proven performance and durability of the Aluminum Street Avenger Series- we have engineered the new marine models to continue that performance heritage that Ho