Front mounted snow blower

[Bradbilt]

I am considering putting a front mounted snow blower on my tractor.

If I do, it would be a SSQA since I just adapted my tractor to one.

What Hydraulic flow do these need to operate efficiently?
My tractor has a 21.5 GPM pump

I would be looking at a 72"+ one

 

[jgayman]

Everything attachments has several SSQA blowers up to 84". They show a couple 72" models, ranging from 18-27GPM to 14-21GPM.