Matched Pair of Quick Fuel Blower Calibrated 750 CFM Carburetors. Quick fuel carburetors are amongst the highest quality carburetors on the market. They are hand assembled and engine tested here in the USA. Carburetor has been tumble polished for a beautiful long lasting shine. The Q-750-B2 is a double pumper carburetor. It features mechanical secondary and has been reworked for use with forced induction. Other standard features include billet metering blocks, billet throttle body, screw in air bleeds, high speed bleeds, idle feed restrictions, power valve channel restrictions, dual metering blocks, 4-corner idle, built-in sight glasses, tunable secondary opening rate and down leg boosters. Q-750-B2 carburetors have 1.375" venturies and 1-11/16" throttle bore. We are a stocking Quick Fuel distributor and offer many different sizes, finishes and options so give us a call if you don't see what you are looking for.