I want to get the Hyperground Systems grounding kit:
http://www.sunautomobile.com



or the Arospeed kit (8 wires, but uses one grounding point)



I looked in the engine bay:



and, I could only find 3 stock grounding points:

battery -> engine bay front




battery -> tranny?



engine mount -> body



Are there more ground points that I've missed? So far I've heard of alternator, firewall, and intake/throttle body ground points. Do we only have 3 stock ground points?

I've heard of grounding the valve cover. What are these two threaded holes for? Would I connect a wire from either of these 2 points:



to the engine mount ground?:




what else have you all grounded/upgraded?
I'm thinking I'll:

1. Upgrade engine mount ground
2. Add valve cover ground
3. Upgrade battery -> engine bay front ground

How do I do the other points?