Where can I find the engine/chassis ground on a 33zx. I think I found the ground block behind the battery switches. There is a black 2/0 awg wire on main lug and several green wires on the block. Under the helm is a dc ground block labeled such. Wiring up an inverter and need to ground inverter chassis.

Look on the bellhousing for a stud with grounds attached to it.

I found through research the manufacturer wanted ac side of inverter grounded to dc side so to trip breaker on dc input side.