I did look for a voltage booster. I saw it somewhere in this forum before, but it's just a stock connector.
I think I will run some new cable. I'll just but a roll of 4 gauge and start rewiring the main connections. I'd like to convert to side post anyways, so it's a good time to do it. I noticed the grounds were tiny too, so probably upgrade all that too.
Thanks for the info. I ordered a new alt for pickup and we'll see if it changes anything.