AMPERAGE ON ALTERNATORS?

Chevy/GMC Trucks Make Specific
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AMPERAGE ON ALTERNATORS?
8D
89s dime
+1y
i need to get a new alternator, i have an optima red top and runnin two viair 450's, and soon a system, what amperage is best to get...is 200amps overkill?
8D
89s dime
+1y
what are u guys runnin?
1