squareback alternator wiring in pre 70 car issue

When I first took it off and started it up it slowly crept up to the 15.2 in stages and then stayed there. It isn't actually driveable yet,I have to swap the axle out to swap gears and grease the axle bearings. I'm just trying to get as many bugs worked out as I can so it will be driveable to work out any others that may pop up. I put this alternator in before I restored the car 3 years ago because the previous one and overcharged and blow my link out.