Currently weighing in at 225 pounds (recently finished bulking so need to shift a little lard over the next few months!) & was around 160 when I went vegan.
That's quite encouraging. My normal lean weight should be around 170lbs, and now I'm at 175. Your example is very motivating. Even average sized guys like us can get huge, it seems. Can you share your strategy (frequency of workouts and meals, supplements?) I guess genetics would also have an impact. Did this growth from 160 to 225 mostly occur over the last two years?
According to body mass index my lean weight should also be around 175, so I'm well over that! I think part of the reason I've added so much weight is due to a natural 'filling out' process in my early twenties. When I first went vegan I was only 19 and playing a lot of hockey, hence pretty skinny. When I 'retired' from hockey my weight went up to around 200 but this was purely me filling out and being a lazy fat git.
When I started working out 3/4 years ago I shifted all the flab and went back down to around 175; in the last couple of years I've built back up to 225 through heavy weights and eating properly. I'm certainly carrying extra poundage around the gut but I've added plenty of muscle too.
Bascially I work out 3 times a week. Monday is legs (squats, stiff leg deadlift & other assistance stuff), Wednesday is pull (deadlift, chins, rows, bicep work), Friday is push (bench, overhead press, dips, tricep work). My goals are strength and size, rather than getting cut/ripped, so I stick to a 5x5 routine on everything except the deadlift (usually just heavy singles). I'm restricted slighty by a dodgy back & hip (combination of hockey injury & 'ossification' of the hip), so although I use a powerlifting-style routine I'm nowhere near being a proper powerlifter.
I'm pretty careful about my diet so I try to avoid refined & processed crap as much as possible (not always possible given that my wife is not vegan and not particularly into healthy eating!). I eat lots of tofu, beans, nuts, lentils, wholewheat bread & pasta, brown rice etc. I supplement with pea protein shakes twice a day (always have a shake with some dextrose straight after a workout) and also use creatine sometimes.