Starting issues

Long story short, I was having some carb issues with the 318 and after talking to some people, all issues seemed to point to a weak fuel pump (87 w150, mechanical pump behind the alternator), now it doesnt want to start. Re-installed the pump thinking I had not done it correctly the first time, took the carb line off and cranked, it does pump in spurts. Its also very cold in my area, which probably doesnt help anything. New pump, 600 holley vacuum, been fighting with this for 3 days, thought it wasnt getting enough fuel the first time around and ended up flooding it to the point of fouling the plugs, new plugs are in and gapped. It hits and tries to start at random moments, regardless of how much I pedal or don't pedal. Carb is spraying. Any ideas? I realize that this isn't an easy one but i'm stumped and without a car until I can figure this out. Electric choke is connected and working, had no issues before changing the pump. Any help is greatly appreciated