Introducing Quick Fuel Technology's Super Street Carburetors. This all aluminum construction with Billet metering blocks and throttle body is 5 lbs. lighter than the nearest competition. Featuring changeable air bleeds, idlefeed restrictions, and power valve channel restrictions. Stainless steel idle mixture screws with plastics seal. Aluminum fuel bowls with glass sight windows. This is the ultimate carburetor for any racer. SS Carburetor