Big 3 electric upgrades?

[Deezul_AwT]

I've heard of the "Big 3" electrical upgrades but couldn't find anything about what alll three are. I know the alternator rewire is one of them, and I've done that. I believe one is the ground as well. When removing the carpet from my GP, I found where it grounds on the passenger side of the front seat. What are they all?

 

[Sabrewings]

Alternator->battery positive
engine ground->chassis
battery ground->chassis

 

[Deezul_AwT]

I know where the battery ground is, so that's not hard. But what part of the engine should I ground to the chassis? Anywhere special?

 

[IndeedSS]

I know where the battery ground is, so that's not hard. But what part of the engine should I ground to the chassis? Anywhere special?

You can go from the alternator mounting bolt to the strut tower nut for that.

 

[SyntheticShield]

The OEM wire runs from the battery, down along the front of the car, along the front part of the sub frame, over to a bolt on the bell housing of the tranny.