I see. Overnight I put the battery charger on, and it fired right up this morning. Idled for a while and ran and stuff, and seems to be working fine. Will probably have to just get the higher amp alternator.
I was only looking at the powermaster's standard looking alternator that is black, looks really nice, but maybe the internals aren't any better than the others and it's overpriced.
https://www.speedwaymotors.com/Powermaster-57297-GM-12SI-150-Amp-Smooth-Look-Alternator-Black,98639.html?sku=25557297&utm_matchtype=%7Bmatch_type%7D&msclkid=31bf64db51191164a31b07c426448b50&utm_source=bing&utm_medium=cpc&utm_campaign=SMI%20-%20Shopping%20(CSE)%20(Bing)&utm_term=1100309997740&utm_content=Powermaster%20(Mar12_2019)