[61_FL_Apache]

Wow Sam!! You went all scientific on it!! Some of that I didn't take into consideration with the iron vs. copper carrying current.

Thanks again for the info and will take all that into consideration going forward..

I do have a newly installed ground from block to frame. Shouldn't that be as good as starter bolt to frame?

If a copper ground is needed going from battery to starter, what gauge would be needed? Same as the positive, or smaller?