small block grounds...?

Really? How well does it spin the engine when hot? I was thinking of a battery in the trunk on my Dart. All of them I've ever seen done had a bit of trouble spinning a hot engine.
I have my battery ground in the trunk,also a ground strap from the head to the old battery tray hole.Cranks up every time,hot or cold.I,m also running solid mounts,so I,m sure that helps grounding also.:burnout: