Racing battery question

Just run a single yellow top Optima deep cycle battery. I ran my hotrod all day and never put a charger on it.

The weight theory is true as well. Although, I never understood why everyone installs it on the right rear as that is the side that drops the lowest when launching due to torque twist. I installed mine on the left rear hanging off the end (outside) of the framerail.

I also ran a Mopar 100amp mini alternator due to the electronics I used. MSD7al, throttle stop, delay box, cooling fans, waterpump, headlights/taillights etc. etc..