Direct replacement components to turn a street carburetor into a high-performance carb. Get that extra performance out of your ride in less than 30 minutes! No Re-built components. Easy swap-in, swap-out installation utilizing existing metering blocks, fuel bowls and base plate. Has adjustable screw-in air bleeds, high-performance down-leg boosters. Comes in clamshell package with instructions, all necessary non-stick replacement gaskets and high-performance jet kit.