16v or 12v and alt.

try a trolling/marine battery. they are high amp and keep the voltage up over a much longer period then the standard car battery. buy a good one. the automotive batts start to lose voltage as soon as you start using energy and fall off at a steady rate. a trolling batt keeps the voltage up for a very long time, hours than it falls off fast. I've used one for 3 races one week apart with out putting a charge on it. plus you can fish with it for 2 days(about 16 hours) with out a charge. and you won't need an alternator. but if you have to have one that fellow andyF makes a trick alternator bracket set up. check mancine racing out, I think they market it for him.