Ezgo stock 13.5hp large enuf for 25” tires

[And its a golf cart]

I have a ezgo txt with a stock 13.5hp Kawasaki motor with a team clutch. It’s a 1200 hauler so it has a dump bed. I use it for moving fire wood, yard Debris and stones for wall building. I haven’t run into any problems pulling a load up a wooded trail on 22” tires, but I’m toying with the idea of increasing the lift and trying out 25s. I want to build some off-road trails.
I read that you Loose torque as your tires increase in size. Most of the information I’ve come across is for electric carts or the older 9 hp motors. I know those can be turned into beasts but what I’ve read the 13.5 Motors are more difficult to tune. As much as the Vegas engine swap sounds amazing, I’m one of the few that digs the pedal start.
I’m interested to know if people Running the 13.5 Kawasaki motors have Successfully done so with larger tires and minimal torque loss.