I have a Quick fuel super street series 680cfm carburetor for sale, This carburetor has only been ran one time for about 30 minutes. This carburetor has changeable idle air bleeds and high speed bleeds, changeable idle feed restrictors and power valve channel restrictors. I have left all the settings stock. This carburetor has .068 main jets and .078 secondary jets, .070 idle air bleeds and .028 high speed bleeds. It has .031 idle feed restrictors and .040 power valve channel restrictors. This carburetor cost 549.95 brand new, i'm asking 350.00 plus shipping which is literally a steal for this carburetor. If interested prive message me.