will a 68 dart amp gauge handle 78 amp alt?

thanks, i dont have much amp draw at the moment.. I plan on replacing the lead from the alt to the S realy, and adding a VR and newer alt.. and eventully add cooling fans, a/c H4 lights.. stereo and small amp

does the alt lead wire go from the alt directly into the amp gauge, then from amp gauge to the batt Or S relay??