Wheelchairman, The 16 hp should do everthing that you want to do. I know you arent as large as my friend and I. Together we weigh almost 720 pounds and the 24 hp honda has enough torque to carry the front wheels in level ground with both of us on it. That is, when you can get the tires to hook. Most of the time it just spins both wheels. If you can buy a kit for your cart, by all means get it. I didnt have the money at the time to buy the kit that Arizona Carts offers so we fabed mine. Man, that was a lot of grinding and welding and cutting and drilling and grinding and... well I'm sure you get the point. I can say we made every needed part of my cart. And I'm kinda proud of that. Although if I would have had the money I would have purchased the kit. You will probably have to have your clutch machined out to fit the shaft on the Briggs, I know on the EZGO the shaft is tapered, I'm assuming the g22 is too. Dont hesitate to ask if you have any more questions, I'll help you as much as I can.
Gregg