QFT brings its engineering expertise to the marine market. The M-Series feature billet-style metering blocks and throttle bodies for more precise performance and exceptional strength. •Exclusive Black Diamond coating for enhanced corrosion protection and appearance, coating provides a 6% reduction in fuel temperature •Electric choke - Fully adjustable, one wire hookup •J tubes to prevent spillage •PTFE-coated throttle shafts with PTFE bearing ribbons and stainless steel plates •Built-in sight glass windows for easy float adjustment •Changeable primary idle feed and power valve channel restrictions, plus changeable idle air and high speed bleeds •QuickLink™ secondary adjustment for fast and easy changing of opening rates •Available in eight different sizes from 350-1,050 cfm