Good news and bad news. Good news, took the old starter to Autozone and it tested out good. Bad news, I don't know what's wrong. I reinstalled everything and tried starting the car up again. With a couple of pumps of the gas pedal, it will start and shut down when the ignition is turned. Without any pumps of the gas pedal, it sounds like the starter and flywheel just free wheel. When I keep my foot on the gas and turn the key, it will start up, but I have to keep my foot 1/2-3/4 throttle in order to keep it running and it does not sound happy. Idk what's wrong, but now it's starting like a fuel problem. I have new spark plugs, since all of the old ones were black, but I'm not sure if I want to install them just yet to check to ensure it is fuel. Video attached of me trying to start the car a couple of times.