low/no charging

Thank for the help man. I did some more measureing to day. And the problem is the alternator. I also took the car to mechanic (Not the same as last time) and he also says the alternator is the problem, It doesen't charge. So I need a new alternator.. Or could it be just the voltage regulator? Is there a way to test it? what alternator do you guys suggest I get? amps? My car has a 318 V8 small block.