Optima batteries

If this is a vehicle with no charging sysyem then the best battery would be the Turbo start 16 volt battery as it will keep the voltage up longer and it won't hurt anything as this voltage is fine for any ignition such as an MSD. Check out their website. It does require a special charger. If you think it is something you want let me know as I have both from a previous race car and I will let them go for a fair price.