I make my own battery cables from #0 arc welder cable. Welding cable has many hundreds of small diameter conductors, and it conducts high current with much less voltage drop than regular battery cables. Run the battery ground cable directly to the block or bellhousing. The fewer connections possible between the battery and the starter, hot and ground, the better.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!