bottom line is a Clutch drive really only needs to support a 47 class blower, plenty of potential right there, you ahve 3" plumbing and over 450 cfm, and how many people really dual wand off of a clutch drive, not many....althought I must say spinning at capacity and using 2.5" hose out to each glided 2" wand, it's more impressive than you might think for a 47.