Alright guys, i tried searching the forums and i cant really tell if anybody has had this problem for sure. The other night i pulled into a parking lot and noticed my lights were very dim. Also, the person behind me pulled in and said i had no brake lights or tail lights. I shut my car off and they were even more dim. I go to start my car again. Nothing. Not even a click. I get a jump from my buddy, my lights and everything are just as bright as they should be when he hooks the cables up. I let it charge for a sec, and the car starts. The lights however, are still pretty dim. I go to pull away and sure enough my car sputters and dies. I think to myself "alternator" so i go grab one from the garage and swap it out. I swap said alternator in the waffle house parking lot lol, and get my friend to jump me again. It does the same thing. In a final effort i have him jump me ONE MORE TIME, but this time i kept the cables hooked up for about 2-3 minutes. The car started fine, ran fine, no electrical issues, nothing. I drove it around all day sunday with no issues as well. This morning, i hop in the car to go to work and start it. I noticed that the car did sound SLIGHTLY weak when turning over. I let the car run, crank up the heat and mosey on inside. i come outside after a few minutes and i get in and turn my lights on. My lights were VERY dim and the car even bogged down for a second. This maybe happened for a second, then the lights were fine. I was a little paranoid, so i decided to shut the car off and start it again. NOTHING. Please guys, help me out here? 1985 monte carlo with 350 sbc swapped in. I kept all factory alternator wiring hooked up on the car. It is as it should be. I just don't know what it can be. By the way, the car has a brand new starter. Help!