The ground wire that connects at the firewall on the passenger's side. I assume this is an engine block ground. My question is where on the block does it connect? I've gone blind looking through the FSM and can't find it.

 

As I recall there's a bolt on the block (rear housing maybe?) it attaches to. Really it doesn't matter too much as long as you have it attached somewhere on the block or something that touches the block metal to metal.

 

there is a 6mm hole on the transmission, the exact spot isn't critical as long as its bolted to metal, the FD uses the intake manifold