That should give that saw a good torque test. I have no doult it will pull it and not lose much power doing so. My 441 runs like a top and power is more than ample for a 28incher...
I've used a 28 quite a bit on mine. PLENTY of power. Cut a 60" ash with it that way. Ran a full comp and full skip. Neither was a problem at all. I was surprised at how much I could lean on it.