Bracket Car Wiring Help

The main thing is a mega fuse of 200 amps right at the battery + terminal and another 50 to 100 amp mega fuse at the alternater output lug. That way in a crash a pinched wire can't continue to arc, possibly re lighting any fire or starting one. Then every stepdown in wire size needs fuse protection at the fuse panel or at a split if for some reason that is done.
Also every connection should be soldered, then covered with a heat shrink tube to prevent flex and wire breakage. It might seem like overkill. But my wiring is over twenty years old and i have never had a failure anywhere in my 8 sec bracket car.