Alternator meter is jumping around and the lights are dimmed... won't stay running

Check the large ALT (black) and BAT (red) cables at the bulkhead connector. They often melt. Search "MAD Bypass" for many posts.

I deleted the bulkhead connector because mine was fucked anyways. It ran fine without it until I pulled the intake manifold. This is all happening after I've replaced the manifold. I just installed a new distributor and now the temp gauge goes all the way up before the engine is even running and it won't stay running. I hate this ******* car. I just want it to ******* run for christ sakes.