What car battery is best for a 1200 watt amp with an 1100 watt subwoofer?

I have a 1983 customized blazer. Its got a new 350hp V8 engine. But the battery sucks, so i was wondering whats a good car battery type that can hold that much power with out being dead all the time. Or hoping that the car starts every time i stop at walmart. So please help|||any battery with 1000 amps can power your vehicle.. and if you dont have a good alternator the battery will be useless no matter what size it is|||your system would work best if you put a capacitor in parralell with the amp and CCA is cold cranking amps of the battery.

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