Trunk Mount Batt. Opinions needed

roccodart440 said

I have an AlterKtion. NO rust, clean bolts.

I also have a ground from the engine to the firewall and a ground from the battery to the rear subframe

Click to expand...

That's exactly "the thing." The K frame is not a ground. The BODY is the ground, and the K frame is 'a thing bolted to it' The K can never be a better ground than whatever the battery NEG is connected to