[tirod]

Losing an engine ground means all the current will go thru the next available one. I had issues with that in a '66 Mustang, it got to the point where I couldn't turn it off with the key, I had to dump the clutch on it securely parked. It wouldn't start properly either, finally just laid on the key and fried the clutch return spring smoking. 250 amps will do that.

Everybody services the battery cable attachments, nobody keeps the negative ground on the block maintained. Choose where you want to let 60 to 250 amps to return. We need to treat it better than the battery clamps, more might be at stake.