If you see what I see in the drawing. The alternator is on the same lug as the battery. This would mean that power from the battery feeds to the lug and then continues on to the alternator un-impeded. There is no disconnect in that line of power.
Yes, a ground side kill would take out all power. But you are also right on checking rules.
Just checked. General rule (NHRA) 8.4 requires the master cut off on the positive side. Also remember that either a vented box or a rear firewall is required under rule 8.1
