Hello, this is unusual for me because i rarely ever deal with the electrical system. to make a long story short, my old alternator on my 75' elky was on its last limb so my dad gave me an fairly new AC Delco alternator they had on a mild built early 70's GMC pickup (gotta love that man). Put it on, and it fired up fairly easy. At idle, it constantly climbs from 12amps to 14-15amps but with any peddle movement whatsoever, it goes on up. Had it autozone tested and it has been up to as far as 18Amps but usually at 16.5amps of normal driving. I dont feel comfortable with this. Help???