OK, going from the factory location up front I will ground using a 2 gauge cable to the front of the left cylinder head. But I also run a 10 gauge to the core support. Then from the backside of the right head I run a 6 gauge strap to the firewall at the voltage regulator. I also like to run a ground strap from the alternator to the block.

When running a rear battery I ground using a 1 gauge wire from the battery to the starter's lug on the block. I also run a 10 gauge to the rear frame rail and a third long 10 gauge up front to the core support. Same 6 gauge from right head to firewall.

With 45 years as a Telephone repair tech, Bonding and Grounding is VERY important. All connections should be clean. Then the nuts torqued to 40 Inch Pounds.