**73 Scamp Mini Pro-Street Engine Swap**
Ask the tech dept at NHRA before you start. They may send you an e-mail with an update for AGM batteries. Keep that with you when you head to the track in case you get questioned if tehy say it's OK, no firewall with AGM battery.
I got away with all sorts of stuff with my wagon like the hatchback cars. Battery in the back, fuel cell fill point inside the car with a door/flap... the good ol days! LOL
No sense doing work if it's not required.
IIRC, the box has to be an "approved" unit. You can't just build one.