One wire alternator.

I'm finally getting ready to purchase a one wire alternator. Powermaster has Mopar units that are converted to one wire units with a built in regulator. They have 100 and also 60 amp units. I'm tempted to go with the 100 amp one mainly to quicken up the battery charging at the track and also to brighten up the headLights and other illumination on the car. I am eliminating the factory amp meter and installing a volt meter. Are there other electrical items on the car that can't handle the additional amps? Would I be better off going with the 60 amp unit?