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 PFTE high temperature coated for a long lasting durable finish. The BFX-4700 has a die cast aluminum main body with billet metering blocks and is a street/strip gasoline carburetor. Other standard features include annular booster venturies with billet aluminum inserts, billet metering blocks, billet throttle body, lengthened venture sections for greater mid range torque, screw in air bleeds, high speed bleeds, idle feed restrictions, 4-corner idle, light weight aluminum fuel bowls with dual sight glasses, #6 AN inlet fittings and tunable secondary opening rate. BFX-4700 carburetors have 1.710" venturies and 2" throttle bore. Additional secondary throttle opening rate links are also included. 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.