[Bigtime400]

I have a 73 that the wiring was shot (mostly bare by generator). So I rewired it. I got it working good and is charging now which before it was not charging at all. But the voltage I have at full throttle is 15v and at idle it’s around 13. Is this normal? Also there is no ground to the case of the regulator right? I would attach some pictures but not sure how....