Altho many of us add a straight feed to the battery/relay to either eliminate the ammeter, or, reduce the load on it due to the age, resistance, etc. of the circuit which may eventually lead to fire under the dash at the ammeter...
we should remember that installing a higher amp alternator does not mean that it will automatically put more amps out. IF the electrical system requires 35 amps to operate at 14 volts, then that is all a 200 amp alternator is going to put out.
On the other hand, if you add dual, high flow fans, a strong system, driving lights, whatever, and the system needs 80 amps or more, then the larger alternator will supply it and maintain the 14 volts (or whatever the regulator is trying to maintain). In this case you need to improve the wiring all the way around. Being a bit larger in capacity than the car needs will allow the alternator to live longer as it generates less heat to do its job...that is assuming it was a quality unit to begin with
