Quick Fuel ss-680cfm Vs

Got a Quick Fuel super street series 680cfm vaccum secondary carburetor for sale, This carburetor has only been ran once for about 20 minutes.
It has blue metering blocks and a blue base plate instead of red.
This carburetor has changeable idle air bleeds and high speed bleeds, changeable idle feed restrictors and power valve channel restrictors.
It has notched secondary floats and secondary jet extensions. It has a 4 corner idle circuit as well. This carburetor comes with 68 main jets and 78 secondary jets, it comes with .070 idle air bleeds and .028 high speed bleeds and it comes with .031 idle feed restrictors and a 6.5hg power valve and .031 accelerator pump nozzles. I am not sure what size the power valve channel restrictors are. This carburetor brand new cost me 549.95, I'm asking 350.00 plus shipping, Will ship ups or usps, whichever. If interested pm me.