Hi, I am 6’2" tall and weigh 310lbs.
I have seen several posts about people not fitting on rides and need to know id am I wasting money going to Universal. If I cant fit, I don’t want to go. I have been to Disney and have had no trouble.
You might have issues on Hulk and Rip Ride Rocket (probably not any of the others)…try test chair, but also they have a seat that’s a little larger. The nature of these rides you need to be well strapped in.
Look at this post and see if you can reach out to these people:
They may be able to answer more specific questions for you.