murray

My new 1980 CX500D needs some carb work, and probably a new throttle pump, but I'm thinking I might go straight to a carb upgrade. What is the difference between the Mikuni kit from SpeedMotoCo (also on Amazon) and the kit from Murray? Are they the same? Different? How? Recommendations? Thanks...

here's some pics after I installed some hyosung gt650r forks on her. waiting on a banjo bolt to test drive . http://i1355.photobucket.com/albums/q710/millertime87/cx500%20front%20end%20conversion/20130711_173532_zps9f69bd68.jpg