I've got a 322 that I assume is one of the last years of production, only way I can tell is that it has the worthless electric choke. Someone before me "restored" the tractor and probably destroyed the serial number tag like they did the rest of the tractor. I've got a 47 blower mounted on the the tractor and anything over 3" of snow it can't handle. Tractor will pretty much bog down and stall out if I don't crawl along at a snails pace. I checked the throttle adjustment according to the service manual and everything checked out, but it still seems like its lacking in the rpm department. I have noticed that from an idle I can move the throttle lever about halfway through the range before it will do anything... Today I was cleaning up some drifts and it would barley throw the snow past the blower housing, and as soon as it would reach the deeper snow it would bog down and plug up. What is the rpm and wot supposed to be? Also how does one go about adjusting the electric clutch? it seems to engage fine, but I'd like to to check it.. For as much as the 322 and 47 blower are bragged about I can honestly say I'm not all that impressed with either. I've seen a Chinese walk behind snowblower throw more snow than this 47. I've got 800 feet of driveway to maintain, and it shouldn't be the struggle its been.