I know a Bill Pearl was an old champion who was lacto-ovo vegetarian.
Robert Cheeke is a vegan bodybuilder and although he has a more lean physique (I want to go for the big look), he is a very inspirational figure for vegan bodybuilding and I look up to him.
In the end, I still believe it's possible to become a big via a vegetarian/vegan diet. If my only goal was to get as big as possible, I would not even bother trying this diet. But I feel this diet has a lot of benefits and also it just makes me feel a lot better knowing I'm not contributing anymore to the harsh slaughter of animals. A little inconvenience in my eating is worth it for the torture and killings of these animals
I'm still quite small and definitely not as strong as some of you guys on here, but I have a lot of fuel still left in me to burn