Where are the main engine bay grounds

Hello,

So far i have located:

1. Fuel injector to valve cover stud (formally the intake manifold)
2. Negative battery to chassis
3. Passenger motor mount to chassis
4. Transmission one that loops to i think the positive battery to the chassis?


1. Am i missing any?
2. Is the "Passenger motor mount to chassis " the main engine ground??

I see some corrosion on some of my ground wires so i want to upgrade them with something better.

Where are the main engine bay grounds