Carburetor Center Hung Fuel Float (Brass) The main difference is that

The main difference is that there is an open area under the plenum chamber

Speedmaster flexplates are the best on the market

this high-performance oil pan is fabricated to meet the demanding needs of top fuel and alcohol applications

The larger needle bearing fulcrum can withstand valve spring loads up to 600lbs

Carburetor Center Hung Fuel Float (Brass) The main difference is thatGet rid of those old fuel bowl floats and upgrade to one of these Speedmaster carburetor floats. They are manufactured from brass and include thread in brass jet extensions (where noted). Available for center hung fuel bowls,Speedmaster carburetor floatS will keep your fuel level where it's supposed to be.