Negative battery cable location

Just starting to sort stuff out on my 72 Barracuda....

The 74 318 that is in it came from another car....

The motor has a battery cable (ground) coming from it (drivers side front corner of the block), and my car has a ground battery cable that goes to the radiator support.

So trying to decide which to use.....I always thought that the ground cable had to go to the block, but the rad support location must have worked for whoever had this car before.....

Which would you guys go with?
Author: admin