trunk mount battery

I think the best way is to go the the track a few times and talk to racers in the class (or e.t. range) you intend on running, and ask them how they did things. You'll still need to read between the lines a bit, as to what they tell you, but the "interviews" help a lot when it's time to interpret the rule book.

check,,,, I've been racing for a couple of years now. I'm just now building a dedicated car for the track

Forgot: neg to frame ground at rear, don't rely on engine to firewall ground, it will fry(don't ask, lol).Install big cable from block to kframe. If not a one wire, you need a 4 post switch in the rear, to kill the alt (will keep running if not- huge frowns from track staff). And bypass that ammeter, instal a voltmeter.. Get that crap out of the dash. It will bite you before you know it. ( been bit twice, and know people that been bit).

check, I have a 60 constant duty relay for alt fields and a 600 amp disconnect switch for the battery. I have to keep the car licensed and streetable for our club rules .

And don't know whether you have a cell, or not. If so, plastic approved plastic box,vented, $ 80, dammit, steel or alum firewall in backseat area (chassis engingeering). It's a pain. and metal over rear package tray speaker holes...and roll cage tubes sealed, painful.

sporting a 5 gallon cell and am still deciding on the battery box setup.
and yep on the aluminum over the back and speakers....