I used to run a 72" blower on a 250A Belarus. The 250A wasn't a very good tractor for a rear snowblower for 2 reasons:
- PTO was transmission driven (not live).
- reverse gears were
waaaay too fast, especially without live PTO.
It would move a lot of snow and fast as long as I could adjust the height (on the first pass and at the end of each blind run) and/or the width of cut fast enough to keep the chute from clogging, but I seemed to spend a lot of time digging out the clogged chute, especially in wet snow. Also, because reverse was so fast, it was hairy trying to steer around obstacles

, sometimes having to stop to avoid hitting something and so clogging the chute.

.
I now use the same old blower on a much smaller tractor (really too small for the blower) with live PTO and HST....it's a whole other world, no more clogged chutes.

You might have better luck with a 60" than I did with a 72", I don't know. The 250 has tons of power to handle it, it's just way too fast in reverse, especially without a live PTO.