Need Opinions. Have nothing to compare to.

Define lazy......What are you used to driving? lol.
(torque x rpm)/5250 =hp
Working it backwards, I see you have available 292 ft lbs at 2250rpm. NET 292.
That's more than a 69 340 can muster at peak.
That's more than my HO360 can put out until nearing 4000, And there is NOTHING lazy about my 360.
Do the compression test, then you'll have a better idea of what's going on.