Another alternator upgrade thread

So right now at idle my LED head lights will flicker and my voltage at the cig lighter will drop to 12.2 volts or less. I changed the voltage regulator and that did help the upper end of my voltage probs (would go over 15volts while driving) but didn't help me when I was idling at a red light.

The 140 amp is the one I have sitting in a box right now. I haven't had a chance to instal it yet since its been snowing. My spring/summer project is to upgrade the electrical stuff, add an MSD box, bigger alternator and instal a stereo.