Fuel delivery issues

Just noticed in your video that your fuel can was higher than the carb. Do the same test but with the can on the ground. The fuel could have been assisted by gravity and you could actually have a bad fuel pump.

Thanks, the can was actually on the ground when I started the car the first time, I just moved it up to try and move the car a little bit, that's when I found the brakes were locked down.

When I get home tonight, I'll pull the line off the sending unit to see if I can blow through the line no trouble. I'm starting to lean toward those additional 4 vent hoses being capped somewhere else in the system, so capping them off would be a priority. I couldn't find any caps for those at the local auto parts store but I've got some others a little further a way that I'll try.

I'm probably going to replace the check valve on the brake booster, as that's fairly cheap and easy enough to replace, hopefully, that'll give me brake pedal back. I'll have to dig around some for the head issue. Not sure why it's only the driver's side that seems to be running hot, probably worth swapping a thermostat and check for leaks.