If I were to run a pioneer 1000 watt amp with an amp to run it, let's say a 1000 watt amp that will run 300 watt RMS plus a four channel amp to run 4 polk separates at 50 watt rms 150 peak... would I need a bigger alternator? If so, what's the biggest or best one to get that would not have me changing other parts?

Thanks.