What are you wanting to do? My guy can hook you up with what ever you want. Call Zach Kerber machine. 1 (712) 566-3008. That is the shop phone. He has flywheels And all the parts you need from mild to wild.
I've been testing a vertical for him in 2 different stages. This year we are testing a "budget" engine. It made 50 HP then the belt on the dyno exploded. I can't remember the price of the kit.
He is out of town this weekend. I'd call him Tuesday or later.