Charging system wire around 6 or 8ga

Does this eliminate / bypass the ammeter?

I really like the battery cables you made me , I have one of those power master alternators to install and I will be running a efi setup too.. is the 8ga the way to go?

It is part of bypassing the ammeter.

Depending on Amp output of alternator. I'd run a 6ga for anything over an 75-80 amp unit.