Ground wires

[StabNsteer]

The two ground wires that normally bolt to the back of the drivers side head on a 5.0 Fox type car: What is the best thing to do with them if you switch to alluminum heads? Seems to me that now it a lousy ground.
right now I have them both(one is just the flat wire from the firewall, the other is from the wire harness) bolted under the bolt that conects the smog tubes from the h-pipe to the back of the heads(does that make sense?). Is this a good enough ground? I also put a 10gauge wire from the block to the frame, I read somewhere this was a good idea for more grounding area.

 

[autoXr1]

The two ground wires that normally bolt to the back of the drivers side head on a 5.0 Fox type car: What is the best thing to do with them if you switch to alluminum heads? Seems to me that now it a lousy ground.
right now I have them both(one is just the flat wire from the firewall, the other is from the wire harness) bolted under the bolt that conects the smog tubes from the h-pipe to the back of the heads(does that make sense?). Is this a good enough ground? I also put a 10gauge wire from the block to the frame, I read somewhere this was a good idea for more grounding area.

Check this out. http://www.stangtuning.com/showthread.php?t=1656 Click onto the links mentioned in the thread and look at the diagrams and information on those pages.

Large guage (no less than 6gaw) copper wire is your best bet, and should ideally be set up to direct current to your negative battery post. The steel chassis of a vehicle is not a very good conductor (may create a significant voltage drop) and tends to "disperse" the voltage throughout the vehicle instead of allowing the current to flow toward your battery. Read the above information and go from there.