Grounding question

Creedmoor got it on the battery ground cable.

You may want to run a ground strap from engine to chassis. If you ground everything to the stud in your engine compartment, a 12ga wire may not be large enough. I'd consider using the chassis to ground items not close to your compartment ground stud.

Use the ground stud for headlights, EFI or other electronics in the compartment.

Good idea vs bolting them all up to the radiator support.