Hey all, I am having some difficulty figuring out a problem with my trucks electrical. I have put a new regulator, alternator(tested) and battery. The truck was reading below 12v and would drop the longer it kept running, even if I revved her or drove on the freeway. I tested all the wire according to the 1963 Chevy Shop Manual and got no where. I was reading online and someone said to add an extra ground from the alternator to the body. See as how mine was wired like that already I tried it and now she charges to about 15v when revving around 2500....however, if I take the negative cable off while idling, she dies. If I rev her to about 1200 to 1500 and then have someone pull the negative cable off she will still run until I take my foot off the gas. Can anyone tell me what is wrong of if it is now fixed and I should just be happy, Thanks