regulator question

update: I replaced the regulator with the Standard 128 and everything seems to be working fine. I found a vender, JM car parts selling on Amazon the regulator for $15 shipping included. I'm usually skeptical about deals too good but what the hell I'll give it a try. I did put on about 10k miles on the car since I bought it with the "race-only" type reg. Don't know how old the battery is but come the spring I'll replace that, the car usually sits during winter but it is bright and sunny here in MA today so I'm driving. Opinions about Carquest battery vs the autozone battery. Also the ground loop that everybody mentions; from alt to reg to negative post? what gauge wire would do? where on the "body" of these units do I connect to: mounting screw for reg, alternator? thanks for everybody's help, I wish I had more time to learn about and work on my car.