68 dart 318 troubleshooting challenge

BTW, anyone reading this that needs an optima, sam's club had the 1000 cold cranking amp red top for 150$

the internet places I found wanted 169+20$ shipping.

I wanted to buy it from my local parts store, (help them grow, to help me better) but they only had the reverse terminal version, and it was 199, and then they tried to convince me to buy the 129$ lead acid battery, which kind of put me off